Understanding clinical trials.
Sackett
D L
DL
Cook
R J
RJ
D000959:Antihypertensive Agents / Q000627:therapeutic use; D002561:Cerebrovascular Disorders / Q000517:prevention & control; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D016032:Randomized Controlled Trials as Topic; D012307:Risk Factors; D016896:Treatment Outcome
D000959:Antihypertensive Agents