The origins of successful closed valvular surgery.
Crawford
F A
FA
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