Biology, 07.06.2021 18:00, iesps010411

A group of 500 people are selected at age 20 and followed for 15 years. The people who go on to develop a certain type of cancer are compared with those who do not. The researchers are attempting to determine different
factors that could increase cancer risk.
historical cohort study
double-blind drug trial
prospective cohort study
randomized controlled trial

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A group of 500 people are selected at age 20 and followed for 15 years. The people who go on to deve...