Levy, R I Position on percutaneous transluminal coronary angioplasty (PTCA) [electronic resource] - Circulation Mar 1979 - 613 p. digital Publication Type: Letter ISSN: 0009-7322 Standard No.: 10.1161/01.cir.59.3.613 doi Subjects--Topical Terms: Coronary Vessels--surgeryHumans