Banka, V S Intervention ventriculography. Comparative value of nitroglycerin, post-extrasystolic potentiation and nitroglycerin plus post-extrasystolic potentiation. [electronic resource] - Circulation Apr 1976 - 632-7 p. digital Publication Type: Journal Article ISSN: 0009-7322 Standard No.: 10.1161/01.cir.53.4.632 doi Subjects--Topical Terms: Cardiac OutputCardiac VolumeCoronary Disease--diagnosisHeart Ventricles--physiopathologyHumansMyocardial Contraction--drug effects