Guitard, C Placebo-controlled crossover comparison of spirapril at 3, 6, 12 and 24 mg once daily in mild to severe essential hypertension. [electronic resource] - Blood pressure. Supplement 1994 - 61-8 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0803-8023 Subjects--Topical Terms: AdolescentAdultAgedAnalysis of VarianceAngiotensin-Converting Enzyme Inhibitors--administration & dosageBlood Pressure--drug effectsBlood Pressure DeterminationDrug Administration ScheduleEnalapril--administration & dosageFemaleHumansHypertension--bloodMaleMiddle AgedRenin-Angiotensin System--drug effects