title: The "father of modern interventional pediatric cardiology" retires.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Hall
mesh_terms: D006328:Cardiac Catheterization; D002309:Cardiology; D006330:Heart Defects, Congenital / Q000175:diagnosis / Q000628:therapy; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D010372:Pediatrics; D012179:Retirement; D014481:United States