Ethical considerations in the planning of hypertension treatment trials.
D000959:Antihypertensive Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004992:Ethics, Medical; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D010919:Placebos
D000959:Antihypertensive Agents; D010919:Placebos