Finding
S-phase fraction Audio
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Subclass of:
Cytogenetic Analysis
Definitions related to s-phase fraction:
  • (mitotic index) An expression of the number of mitoses found in a stated number of cells.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • A measure of the percentage of cells in a tumor that are in the phase of the cell cycle during which DNA is synthesized. The S-phase fraction may be used with the proliferative index to give a more complete understanding of how fast a tumor is growing.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • The percentage of cells in a sample currently undergoing mitosis.
    NCI
    U.S. National Cancer Institute, 2021
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