
Designing Clinical Research,

Designing Clinical Research,

Designing Clinical Research: An Epidemiologic Approach: Cummings, Steven R., Browner, Warren S., M.D., Grady, Deborah G., M.D., Hearst, Norman, Newman, Thomas B., M.D., Hulley, Stephen B., Hulley, Stephen B.: 9780781722186: Amazon.com: Books,

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