Multiple Choice
John established a study to investigate the association between smoking and lung cancer. He assigned two groups; one is exposed to smoking and the other is not exposed to smoking. The two groups were followed over time to investigate the incidence of lung cancer. This study is:
A) Case-Control study
B) Cohort study
C) Cross-sectional study
D) Randomized control trial
Correct Answer:
Verified
Correct Answer:
Verified
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