Rosenthal, J Therapeutic assessment of urapidil or angiotensin-converting enzyme inhibition in systemic hypertension. [electronic resource] - The American journal of cardiology Aug 1989 - 25D-29D p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Multicenter Study; Randomized Controlled Trial ISSN: 0002-9149 Standard No.: 10.1016/0002-9149(89)90692-9 doi Subjects--Topical Terms: AdultAgedAged, 80 and overAntihypertensive Agents--administration & dosageBlood Pressure--drug effectsCaptopril--administration & dosageDouble-Blind MethodDrug Administration ScheduleDrug EvaluationFemaleHumansMaleMiddle AgedMulticenter Studies as TopicPiperazines--administration & dosageRandom AllocationTime FactorsVascular Resistance--drug effects