Martens, V A clinical study on the prolonged antihypertensive effect of clonidine in a sustained-release capsule formulation. [electronic resource] - Pharmatherapeutica 1980 - 456-61 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0308-051X Subjects--Topical Terms: AdultAgedBlood Pressure--drug effectsCapsulesClonidine--administration & dosageDelayed-Action PreparationsEvaluation Studies as TopicFemaleHumansHypertension--drug therapyMaleMiddle AgedPosture