Lombardi, M Efficacy of isosorbide-5-mononitrate versus nifedipine in preventing spontaneous and ergonovine-induced myocardial ischaemia. A double-blind, placebo-controlled study. [electronic resource] - European heart journal Jun 1993 - 845-51 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0195-668X Standard No.: 10.1093/eurheartj/14.6.845 doi Subjects--Topical Terms: Administration, OralAdultAngina Pectoris, Variant--diagnostic imagingDouble-Blind MethodEchocardiographyElectrocardiography--drug effectsElectrocardiography, Ambulatory--drug effectsErgonovineExercise Test--drug effectsFemaleHumansIsosorbide Dinitrate--analogs & derivativesMaleMiddle AgedMyocardial Ischemia--diagnostic imagingNifedipine--therapeutic useVasodilator Agents--therapeutic use