[Swiss Society for Surgery. 67th annual meeting, 26-28 June 1980, Montreux].
D003226:Congresses as Topic; D013502:General Surgery; D006801:Humans; D012955:Societies, Medical; D013514:Surgical Procedures, Operative; D013557:Switzerland
Schweizerische Gesellschaft für Chirurgie 67. Jahresversammlung, 26.--28. Juni 1980, Montreux.