title: Abstracts of papers presented at the 9th annual meeting of the Deutsche Gesellschaft für Thorax-, Herz- und Gefässchirurgie. German Society for thoracic and cardiovascular surgery. Thursday, February 14th 1980 to Saturday, February 16th, 1980. Bad Nauheim.
mesh_terms: D000818:Animals; D006348:Cardiac Surgical Procedures; D003226:Congresses as Topic; D005860:Germany, West; D006801:Humans; D012955:Societies, Medical; D013903:Thoracic Surgery; D014656:Vascular Surgical Procedures