title: The origins of successful closed valvular surgery.
authors.forename: F A
authors.initials: FA
authors.lastname: Crawford
mesh_terms: D015142:Baltimore; D006348:Cardiac Surgical Procedures / Q000266:history*; D006349:Heart Valve Diseases / Q000266:history* / Q000601:surgery; D049673:History, 20th Century; D006801:Humans; D012214:Rheumatic Heart Disease / Q000266:history / Q000601:surgery; D014768:Virginia