Alhaddad, I Angioplasty versus medical therapy for single-vessel coronary artery disease. [electronic resource] - The New England journal of medicine Jun 1992 - 1633; author reply 1633-4 p. digital Publication Type: Comparative Study; Letter ISSN: 0028-4793 Subjects--Topical Terms: Angina Pectoris--therapyAngioplasty, Balloon, CoronaryFollow-Up StudiesHumans