Tikoff, G Patent ductus arteriosus complicated by heart failure. Classification based on clinical and serial hemodynamic studies. [electronic resource] - The American journal of medicine Jan 1969 - 43-51 p. digital Publication Type: Journal Article ISSN: 0002-9343 Standard No.: 10.1016/0002-9343(69)90056-4 doi Subjects--Topical Terms: AdolescentAdultDuctus Arteriosus, Patent--complicationsFemaleHeart Failure--etiologyHemodynamicsHumansMaleMiddle Aged