64th Annual meeting of the Swiss Society of Gastroenterology and Hepatology together with the Swiss Society of Visceral Surgery. Zurich, 16-18 September 1999. Abstracts.
D000818:Animals; D005762:Gastroenterology; D005767:Gastrointestinal Diseases / Q000601:surgery; D006801:Humans; D008107:Liver Diseases / Q000601:surgery