Affiliation: | 1. Nestlé Health Science, Avenue Nestlé 55, BP 353, CH-1800 Vevey, Switzerland;2. University Hospital of Lausanne (CHUV), Medical Direction, Rue du Bugnon 46, CH-1011 Lausanne, Switzerland;3. University Hospital of Lausanne (CHUV), Department of Visceral Surgery, Rue du Bugnon 46, CH-1011 Lausanne, Switzerland |