[Northwest German Surgery Association. 136th meeting. 5-7 December 1985, Hamburg. Abstracts].
D004066:Digestive System Diseases / Q000601:surgery*; D005767:Gastrointestinal Diseases / Q000601:surgery*; D006801:Humans; D010438:Peptic Ulcer Hemorrhage / Q000601:surgery
Vereinigung Nordwestdeutscher Chirurgen. 136. Tagung vom 5.-7. 12. 1985 in Hamburg.