2011. Supplementum 189: Annual meeting of the Swiss Society of Gastroenterology, the Swiss Society for Visceral Surgery and the Swiss Association for the Study of the Liver (Lausanne, Switzerland, September 29-30, 2011). Swiss Medical Weekly. 141, 3738 (Sep. 2011), Suppl. 189. DOI:https://doi.org/10.57187/s.5284.