-
Prevelence of depression in Iranian women with breast cancer: a systematic review and meta-analysis.Przeglad Epidemiologiczny 2022Depression is a debilitating disease that is highly prevalent among cancer patients. Various studies in Iran have reported different prevalence. This systematic review... (Meta-Analysis)
Meta-Analysis
INTRODUCTION
Depression is a debilitating disease that is highly prevalent among cancer patients. Various studies in Iran have reported different prevalence. This systematic review and meta-analysis was conducted to estimate the overall prevalence of depression in Iranian women with breast cancer.
MATERIAL AND METHODS
In this study, published articles in Persian and English were collected without time limit. Keyword searches for depression, depressive disorder, dysthymic disorder, major depressive disorder, breast cancer, breast neoplasm, and Iran and all of their potential combinations were performed in Scientific Information Database (SID), MagIran, PubMed, Scopus, Web of Science databases. The heterogeneity between studies was assessed using the Q-Cochrane test and, given the significant heterogeneity, a random-effects model was used to estimate the overall prevalence of depression. Data were analyzed using STATA version 11 software.
RESULTS
The analysis of 22 selected articles with a total sample size of 3,082 showed that the overall prevalence of depression in women with breast cancer was 49.98% (95% confidence interval: 48.43-52.52). The prevalence of depression in Region 1 in the country was (28%; 95% confidence interval: 25.53-52.55) and in other regions, it was (63.79% with 95% confidence interval of 61.82-76.76). The highest and the lowest prevalence of depression were related to BDI (69.33%; 95% confidence interval: 67.19-71.48) and HADS (26.43%; 95% confidence interval: 23.14-29.72), respectively.
CONCLUSIONS
Half of the Iranian women with breast cancer had depression. Given the overlap of physical symptoms of cancer with depression, identifying at-risk patients for controlling and providing therapeutic interventions seems necessary.
Topics: Breast Neoplasms; Depression; Depressive Disorder, Major; Female; Humans; Iran; Poland; Prevalence
PubMed: 35860943
DOI: 10.32394/pe.76.04 -
The Journal of Clinical Psychiatry Dec 2003Effectiveness of antidepressant medication is reduced by patients' nonadherence. Several interventions to improve adherence in patients diagnosed with unipolar... (Comparative Study)
Comparative Study Review
BACKGROUND
Effectiveness of antidepressant medication is reduced by patients' nonadherence. Several interventions to improve adherence in patients diagnosed with unipolar depression have been tested.
OBJECTIVE
To systematically review the effectiveness of interventions that aimed to improve adherence to antidepressant medication in patients with unipolar depression.
METHOD
Systematic review of English-language articles of randomized controlled trials obtained by a computerized literature search of MEDLINE (1966-January 2002) using the terms patient compliance, patient dropout, treatment refusal, patient education, adherence, clinical trial, randomized controlled trial, controlled trial, depressive disorder, and depression; PSYCINFO (1984-January 2002) using the terms random, clinical, control, trial, adherence, compliance, noncompliance, dropouts, patient education, depression, major depression, affective disorders, and dysthymic disorder; EMBASE (1980-January 2002) using the terms patient compliance, patient dropouts, illness behavior, treatment refusal, patient education, clinical trial, controlled study, randomized controlled trial, and depression; and the Cochrane Controlled Trials Register (no restrictions) using the terms random*, complian*, adheren*, pharmacotherapy, regimen*, educat*, medicat*, depression, and depressive disorder.
RESULTS
Educational interventions to enhance adherence failed to demonstrate a clear benefit on adherence and depression outcome. However, collaborative care interventions tested in primary care demonstrated significant improvements in adherence during the acute and continuation phase of treatment and were associated with clinical benefit, especially in patients suffering from major depression who were prescribed adequate dosages of antidepressant medication.
CONCLUSION
We found evidence to support the introduction of interventions to enhance adherence with antidepressant medication in primary care, not only because of better adherence but also because of better treatment results. Because collaborative care interventions require additional resources, a better understanding of the mode of action of different programs is needed to reduce avoidable costs. The effectiveness of educational interventions needs more evidence.
Topics: Antidepressive Agents; Depressive Disorder; Humans; Patient Care Team; Patient Compliance; Patient Education as Topic; Primary Health Care; Randomized Controlled Trials as Topic; Treatment Outcome; Treatment Refusal
PubMed: 14728101
DOI: 10.4088/jcp.v64n1203 -
The Cochrane Database of Systematic... Dec 2010Major depressive disorder (MDD) is a common condition with a lifetime prevalence of 15% to 18%, which leads to considerable suffering and disability. Some antipsychotics... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Major depressive disorder (MDD) is a common condition with a lifetime prevalence of 15% to 18%, which leads to considerable suffering and disability. Some antipsychotics have been reported to induce remission in major depression, when added to an antidepressant.
OBJECTIVES
To evaluate the effects of second-generation antipsychotic (SGA) drugs (alone or augmentation) compared with placebo or antidepressants for people with MDD or dysthymia.
SEARCH STRATEGY
The Cochrane Depression, Anxiety and Neurosis Group's controlled trial registers (CCDANCTR-Studies and CCDANCTR-References) were searched up to 21 July 2010. The author team ran complementary searches on clinicaltrials.gov and contacted key authors and drug companies.
SELECTION CRITERIA
We included all randomised, double-blind trials comparing oral SGA treatment (alone or augmentation) with other forms of pharmaceutical treatment or placebo in people with MDD or dysthymia.
DATA COLLECTION AND ANALYSIS
We extracted data independently. For dichotomous data we calculated the odds ratio (OR) and 95% confidence interval (CI) on an intention-to-treat basis, and for continuous data the mean difference (MD), based on a random-effects model. We presented each comparison separately; we did not perform a pooled data analysis.
MAIN RESULTS
We included 28 trials with 8487 participants on five SGAs: amisulpride, aripiprazole, olanzapine, quetiapine and risperidone.Three studies (1092 participants) provided data on aripiprazole augmentation in MDD. All efficacy data (response n = 1092, three RCTs, OR 0.48; 95% CI 0.37 to 0.63), (MADRS n = 1077, three RCTs, MD -3.04; 95% CI -4.09 to -2) indicated a benefit for aripiprazole but more side effects (weight gain, EPS) .Seven trials (1754 participants) reported data on olanzapine. Compared to placebo fewer people discontinued treatment due to inefficacy; compared to antidepressants there were no efficacy differences, olanzapine augmentation showed symptom reduction (MADRS n = 808, five RCTs, MD -2.84; 95% CI -5.48 to -0.20), but also more weight or prolactin increase.Quetiapine data are based on seven trials (3414 participants). Compared to placebo, quetiapine monotherapy (response n = 1342, three RCTs, OR 0.52; 95% CI 0.41 to 0.66) and quetiapine augmentation (response n = 937, two RCTs, OR 0.68; 95% CI 0.52 to 0.90) showed symptom reduction, but quetiapine induced more sedation.Four trials (637 participants) presented data on risperidone augmentation, response data were better for risperidone (n = 371, two RCTs, OR 0.57; 95% CI 0.36 to 0.89) but augmentation showed more prolactin increase and weight gain.Five studies (1313 participants) presented data on amisulpride treatment for dysthymia. There were some beneficial effects compared to placebo or antidepressants but tolerability was worse.
AUTHORS' CONCLUSIONS
Quetiapine was more effective than placebo treatment. Aripiprazole and quetiapine and partly also olanzapine and risperidone augmentation showed beneficial effects compared to placebo. Some evidence indicated beneficial effects of low-dose amisulpride for dysthymic people. Most SGAs showed worse tolerability.
Topics: Amisulpride; Antidepressive Agents; Antipsychotic Agents; Aripiprazole; Benzodiazepines; Depressive Disorder, Major; Dibenzothiazepines; Dysthymic Disorder; Humans; Olanzapine; Piperazines; Quetiapine Fumarate; Quinolones; Randomized Controlled Trials as Topic; Risperidone; Sulpiride
PubMed: 21154393
DOI: 10.1002/14651858.CD008121.pub2 -
The Cochrane Database of Systematic... Jun 2015This review has been withdrawn due to non‐compliance with Cochrane's Commercial Sponsorship Policy. The editorial group responsible for this previously published... (Review)
Review
This review has been withdrawn due to non‐compliance with Cochrane's Commercial Sponsorship Policy. The editorial group responsible for this previously published document have withdrawn it from publication.
Topics: Antidepressive Agents; Dysthymic Disorder; Humans; Placebos; Randomized Controlled Trials as Topic
PubMed: 26087170
DOI: 10.1002/14651858.CD001130.pub2 -
BMJ Open Feb 2021To assess the global prevalence estimates of depressive symptoms, dysthymia and major depressive disorders (MDDs) among homeless people. (Meta-Analysis)
Meta-Analysis
OBJECTIVES
To assess the global prevalence estimates of depressive symptoms, dysthymia and major depressive disorders (MDDs) among homeless people.
DESIGN
Systematic review and meta-analysis.
DATA SOURCES
Databases including PubMed, Scopus and Web of Science were systematically searched up to February 2020 to identify relevant studies that have reported data on the prevalence of depressive symptoms, dysthymia and MDDs among homeless people.
ELIGIBILITY CRITERIA
Original epidemiological studies written in English that addressed the prevalence of depressive problems among homeless people.
DATA EXTRACTION AND SYNTHESIS
A random-effect meta-analysis was performed to pool the prevalence estimated from individual studies. Subgroup and sensitivity analyses were employed to compare the prevalence across the groups as well as to identify the source of heterogeneities. The Joanna Briggs Institute's quality assessment checklist was used to measure the study quality. Cochran's Q and the I test were used to assess heterogeneity between the studies.
RESULTS
Forty publications, including 17 215 participants, were included in the final analysis. This meta-analysis demonstrated considerably higher prevalence rates of depressive symptoms 46.72% (95% CI 37.77% to 55.90%), dysthymia 8.25% (95% CI 4.79% to 11.86%), as well as MDDs 26.24% (95% CI 21.02% to 32.22%) among homeless people. Our subgroup analysis showed that the prevalence of depressive symptoms was high among younger homeless people (<25 years of age), whereas the prevalence of MDD was high among older homeless people (>50 years of age) when compared with adults (25-50 years).
CONCLUSION
This review showed that nearly half, one-fourth and one-tenth of homeless people are suffering from depressive symptoms, dysthymia and MDDs, respectively, which are notably higher than the reported prevalence rates in the general population. The findings suggest the need for appropriate mental health prevention and treatment strategies for this population group.
Topics: Adult; Depression; Depressive Disorder, Major; Dysthymic Disorder; Ill-Housed Persons; Humans; Middle Aged; Prevalence
PubMed: 33622940
DOI: 10.1136/bmjopen-2020-040061 -
The epidemiological modelling of dysthymia: application for the Global Burden of Disease Study 2010.Journal of Affective Disorders Oct 2013In order to capture the differences in burden between the subtypes of depression, the Global Burden of Disease 2010 Study for the first time estimated the burden of... (Review)
Review
BACKGROUND
In order to capture the differences in burden between the subtypes of depression, the Global Burden of Disease 2010 Study for the first time estimated the burden of dysthymia and major depressive disorder separately from the previously used umbrella term 'unipolar depression'. A global summary of epidemiological parameters are necessary inputs in burden of disease calculations for 21 world regions, males and females and for the year 1990, 2005 and 2010. This paper reports findings from a systematic review of global epidemiological data and the subsequent development of an internally consistent epidemiological model of dysthymia.
METHODS
A systematic search was conducted to identify data sources for the prevalence, incidence, remission and excess-mortality of dysthymia using Medline, PsycINFO and EMBASE electronic databases and grey literature. DisMod-MR, a Bayesian meta-regression tool, was used to check the epidemiological parameters for internal consistency and to predict estimates for world regions with no or few data.
RESULTS
The systematic review identified 38 studies meeting inclusion criteria which provided 147 data points for 30 countries in 13 of 21 world regions. Prevalence increases in the early ages, peaking at around 50 years. Females have higher prevalence of dysthymia than males. Global pooled prevalence remained constant across time points at 1.55% (95%CI 1.50-1.60). There was very little regional variation in prevalence estimates.
LIMITATIONS
There were eight GBD world regions for which we found no data for which DisMod-MR had to impute estimates.
CONCLUSION
The addition of internally consistent epidemiological estimates by world region, age, sex and year for dysthymia contributed to a more comprehensive estimate of mental health burden in GBD 2010.
Topics: Adolescent; Adult; Age Factors; Aged; Aged, 80 and over; Cost of Illness; Depressive Disorder, Major; Dysthymic Disorder; Female; Global Health; Humans; Incidence; Male; Middle Aged; Models, Statistical; Prevalence; Sex Factors; Young Adult
PubMed: 23806588
DOI: 10.1016/j.jad.2013.05.060 -
The Cochrane Database of Systematic... 2000Dysthymia is a depressive disorder of chronic nature but of less severity than major depression, which depressive symptoms are more or less continuous for at least two... (Review)
Review
OBJECTIVES
Dysthymia is a depressive disorder of chronic nature but of less severity than major depression, which depressive symptoms are more or less continuous for at least two years. The aim of this review was to conduct a systematic review of all RCTs comparing drugs and placebo for dysthymia.
SEARCH STRATEGY
Electronic searches of Cochrane Library, EMBASE, MEDLINE, PsycLIT, Biological Abstracts and LILACS; reference searching; personal communication; conference abstracts; unpublished trials from the pharmaceutical industry; book chapters on the treatment of depression.
SELECTION CRITERIA
The inclusion criteria for all randomised controlled trials were that they should focus on the use of drugs versus placebo for dysthymic patients. Exclusion criteria were: non randomised, mixed major depression/ dysthymia (trials not providing separate data) and depression secondary to other disorders (e.g. substance abuse).
DATA COLLECTION AND ANALYSIS
The reviewers extracted the data independently. In order to achieve an intention-to-treat analysis, when trials failed to report it was assumed that people who died or dropped out had no improvement. Authors of relevant trials were contacted for additional and missing data. Absence of treatment response as defined by authors was the main measure of outcome used. Relative Risks (RR) and 95% confidence intervals (CI) of dichotomous data were calculated with the Random Effects Model. Where possible, number needed to treat (NNT) and number needed to harm (NNH) were estimated, taking the reciprocal of the absolute risk reduction.
MAIN RESULTS
Currently the review includes 15 trials. Similar results were obtained in terms of efficacy for different groups of drugs, such as tricyclic (TCA), selective serotonin reuptake inhibitors (SSRI), monoamine oxidase inhibitors (MAOI) and other drugs (sulpiride, amineptine, and ritanserin). The pooled RR for absence of treatment response was 0.68 (95% CI 0.59-0.78) for TCA and the NNT was 4.3 (95% CI 3.2-6.5). SSRIs showed similar RR for this outcome: 0.64 (95% CI 0.55-0.74), the NNT being 4.7 (95% CI 3.5-6.9). Concerning MAOIs, the RR was 0.59 (95% CI 0.48-0.71) and the NNT was 2.9 (95% CI 2.2-4.3). Other drugs (amisulpride, amineptine and ritanserin) showed similar results in terms of absence of treatment response. Using more stringent criteria for improvement - full remission - the results were unchanged. Patients treated on TCA were more likely to report adverse events, compared with placebo.
REVIEWER'S CONCLUSIONS
Drugs are effective in the treatment of dysthymia with no differences between and within class of drugs. Tricyclic antidepressants are more likely to cause adverse events and dropouts. As dysthymia is a chronic condition, there remains little information on quality of life and medium or long-term outcome.
Topics: Antidepressive Agents; Dysthymic Disorder; Humans; Placebos; Randomized Controlled Trials as Topic
PubMed: 11034701
DOI: 10.1002/14651858.CD001130 -
The Cochrane Database of Systematic... Jun 2015Major depression and other depressive conditions are common in people with cancer. These conditions are not easily detectable in clinical practice, due to the overlap... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Major depression and other depressive conditions are common in people with cancer. These conditions are not easily detectable in clinical practice, due to the overlap between medical and psychiatric symptoms, as described by diagnostic manuals such as the Diagnostic and Statistical Manual of Mental Disorders (DSM) and International Classification of Diseases (ICD). Moreover, it is particularly challenging to distinguish between pathological and normal reactions to such a severe illness. Depressive symptoms, even in subthreshold manifestations, have been shown to have a negative impact in terms of quality of life, compliance with anti-cancer treatment, suicide risk and likely even the mortality rate for the cancer itself. Randomised controlled trials (RCTs) on the efficacy and tolerability of antidepressants in this population group are few and often report conflicting results.
OBJECTIVES
To assess the effects and acceptability of antidepressants for treating depressive symptoms in adults (18 years or older) with cancer (any site and stage).
SEARCH METHODS
We searched the following electronic bibliographic databases: the Cochrane Central Register of Controlled Trials (CENTRAL 2014, Issue 3), MEDLINE Ovid (1946 to April week 3, 2014), EMBASE Ovid (1980 to 2014 week 17) and PsycINFO Ovid (1987 to April week 4, 2014). We additionally handsearched the trial databases of the most relevant national, international and pharmaceutical company trial registers and drug-approving agencies for published, unpublished and ongoing controlled trials.
SELECTION CRITERIA
We included RCTs allocating adults (18 years or above) with any primary diagnosis of cancer and depression (including major depressive disorder, adjustment disorder, dysthymic disorder or depressive symptoms in the absence of a formal diagnosis) comparing antidepressants versus placebo, or antidepressants versus other antidepressants.
DATA COLLECTION AND ANALYSIS
Two review authors independently checked eligibility and extracted data using a form specifically designed for the aims of this review. The two authors compared the data extracted and then entered data into RevMan 5 with a double-entry procedure. Information extracted included study and participant characteristics, intervention details, outcome measures for each time point of interest, cost analysis and sponsorship by a drug company. We used the standard methodological procedures expected by The Cochrane Collaboration.
MAIN RESULTS
We retrieved a total of nine studies (861 participants), with seven studies contributing to the meta-analysis for the primary outcome. Four of these compared antidepressants and placebo, two compared two antidepressants and one-three armed study compared two antidepressants and a placebo arm. For the acute phase treatment response (6 to 12 weeks), we found very low quality evidence for the effect of antidepressants as a class on symptoms of depression compared with placebo when measured as a continuous outcome (standardised mean difference (SMD) -0.45, 95% confidence interval (CI) -1.01 to 0.11, five RCTs, 266 participants) or as a proportion of people who had depression (risk ratio (RR) 0.82, 95% CI 0.62 to 1.08, five RCTs, 417 participants). No trials reported data on the follow-up response (more than 12 weeks). In head-to-head comparisons we only retrieved data for selective serotonin reuptake inhibitors (SSRIs) versus tricyclic antidepressants, providing very low quality evidence for the difference between these two classes (SMD -0.08, 95% CI -0.34 to 0.18, three RCTs, 237 participants). No clear evidence of an effect of antidepressants versus either placebo or other antidepressants emerged from the analyses of the secondary efficacy outcomes (dichotomous outcome, response at 6 to 12 weeks, very low quality evidence). We found very low quality evidence for the effect of antidepressants as a class in terms of dropouts due to any cause compared with placebo (RR 0.87, 95% CI 0.49 to 1.53, six RCTs, 455 participants), as well as between SSRIs and tricyclic antidepressants (RR 0.83, 95% CI 0.53 to 1.30, three RCTs, 237 participants). We downgraded the quality of the evidence because the included studies were at an unclear or high risk of bias due to poor reporting, imprecision arising from small sample sizes and wide confidence intervals, and inconsistency due to statistical or clinical heterogeneity.
AUTHORS' CONCLUSIONS
Despite the impact of depression on people with cancer, available studies were very few and of low quality. This review found very low quality evidence for the effects of these drugs compared with placebo. On the basis of these results clear implications for practice cannot be made. The use of antidepressants in people with cancer should be considered on an individual basis and, considering the lack of head-to-head data, the choice of which agent should be prescribed may be based on the data on antidepressant efficacy in the general population of individuals with major depression, also taking into account that data on medically ill patients suggest a positive safety profile for the SSRIs. Large, simple, randomised, pragmatic trials comparing commonly used antidepressants versus placebo in people with cancer with depressive symptoms, with or without a formal diagnosis of a depressive disorder, are urgently needed to better inform clinical practice.
Topics: Adjustment Disorders; Adult; Antidepressive Agents; Antidepressive Agents, Tricyclic; Depression; Depressive Disorder; Depressive Disorder, Major; Dysthymic Disorder; Humans; Neoplasms; Randomized Controlled Trials as Topic; Selective Serotonin Reuptake Inhibitors
PubMed: 26029972
DOI: 10.1002/14651858.CD011006.pub2 -
Human Psychopharmacology Nov 2021Depressive symptoms occur in several psychiatric disorders, often in the absence of a formal diagnosis of depression. We aimed to evaluate the efficacy and the... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Depressive symptoms occur in several psychiatric disorders, often in the absence of a formal diagnosis of depression. We aimed to evaluate the efficacy and the tolerability of amisulpride, both alone and as augmentation therapy, in the treatment of depressive symptoms in individuals with any major psychiatric disorder.
METHODS
We searched PubMed, Embase, PsycINFO, GreyLit, OpenGrey and ProQuest up to March 2020 for randomised controlled trials focussing on the treatment of an acute depressive episode in any major psychiatric disorder. A random-effect meta-analysis was performed to synthesize the findings on depressive symptoms (primary outcome), response rate and tolerability.
RESULTS
We retrieved 11 studies including 2065 patients with a diagnosis of dysthymia (eight studies), major depression (one study) or schizophrenia (two studies). Amisulpride 50 mg/day was associated with a larger reduction of depressive symptoms compared to placebo (standardised mean difference [SMD] = -0.70, CI 95% -0.92, -0.49; I = 0.0%), and was found to be comparable to selective serotonin reuptake inhibitors (SSRIs; SMD = -0.08, CI 95% -0.23, 0.06, I = 0.0%), amineptine, imipramine and amitriptyline in the treatment of dysthymia (three studies, not pooled). In individuals with schizophrenia, amisulpride administered at higher doses (>400 mg/day) was comparable to olanzapine and risperidone (two studies, not pooled). In terms of tolerability, amisulpride was superior to placebo for dysthymia (odds ratio [OR] = 3.94, CI 95% 1.07, 14.48; I = 0.0) and comparable with SSRIs (OR = 0.94, CI 95% 0.55, 1.62; I = 0.0%).
CONCLUSION
Treatment with amisulpride could be a valid choice for selected individuals with dysthymia or depressive symptoms in the context of schizophrenia. More studies on the efficacy and tolerability of amisulpride are needed to draw firm conclusions on its potential benefits in other psychiatric disorders.
Topics: Amisulpride; Antipsychotic Agents; Depression; Depressive Disorder, Major; Dysthymic Disorder; Humans
PubMed: 34727399
DOI: 10.1002/hup.2801 -
The Cochrane Database of Systematic... 2003Many drug treatments have been proposed for the treatment of dysthymia, but with so many potential comparisons it is not possible at the present time to determine which... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Many drug treatments have been proposed for the treatment of dysthymia, but with so many potential comparisons it is not possible at the present time to determine which is the treatment of choice. There is a need to know whether the different classes of antidepressants have similar efficacy. In addition, the tolerability of treatments may be even more important, since dysthymia is a chronic condition characterised by less severe symptoms than major depression.
OBJECTIVES
To conduct a systematic review of all randomised controlled trials comparing two or more active drug treatments for dysthymia.
SEARCH STRATEGY
Electronic searches of Cochrane Library, EMBASE, MEDLINE, PsycLIT and LILACS, Biological Abstracts; reference searching; personal communication; unpublished trials from pharmaceutical industry.
SELECTION CRITERIA
Only randomised and quasi-randomised controlled trials were included. Trials had to compare at least two active drug treatments in the treatment of dysthymia. Exclusion criteria were: non-randomised studies, studies which included patients with mixed major depression/dysthymia and studies on depression/dysthymia secondary to other disorders (e.g. substance abuse).
DATA COLLECTION AND ANALYSIS
The reviewers extracted the data independently and odds ratios, weighted mean difference and number needed to treat were estimated. The reviewers assumed that people who died or dropped out had no improvement and tested the sensitivity of the final results to this assumption.
MAIN RESULTS
A total of 14 trials were eligible for inclusion in the review. All studied drugs promoted similar clinical responses, although with different side effect profiles. The evidence for TCAs and SSRIs was the most robust, considering the number of trials and participants.
REVIEWER'S CONCLUSIONS
The conclusion is that the choice of drug must be made based on consideration of drug-specific side effect properties.
Topics: Antidepressive Agents; Dysthymic Disorder; Humans; Randomized Controlled Trials as Topic
PubMed: 12918001
DOI: 10.1002/14651858.CD004047