Which of the following study designs is most efficient in studying a rare exposure? A. Case control B. Cross-sectional C. Cohort D. None of the above
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Which of the following study designs is most efficient in studying a rare exposure?
A. Case control
B. Cross-sectional
C. Cohort
D. None of the above
Solution-:
Which of the following study designs is most efficient in studying a rare exposure?
(A) Case control
(B) Cross-sectional
(C) Cohort
(D) None of the above
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