NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,440 terms related to cancer and medicine.
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- historic cohort study
- listen (hih-STOR-ik KOH-hort STUH-dee)
- A research study in which the medical records of groups of individuals who are alike in many ways but differ by a certain characteristic (for example, female nurses who smoke and those who do not smoke) are compared for a particular outcome (such as lung cancer). Also called retrospective cohort study.