13th annual meeting of the German Society for Thoracic and Cardiovascular Surgery. February 16th, 1984 to February 18th, 1984, Bad Nauheim, Abstracts.
D006331:Heart Diseases / Q000601:surgery*; D006801:Humans; D012137:Respiratory System / Q000601:surgery; D014652:Vascular Diseases / Q000601:surgery*