Affiliation: | 1. Department of Surgery, Kantonsspital St Gallen, St Gallen, Switzerland;2. Department of Surgery, Krankenhaus Wiener Neustadt, Wiener Neustadt, Austria;3. Department of Surgery, HELIOS Klinikum Wuppertal, Wuppertal, Germany;4. Department of Surgery, Kantonsspital Liestal, Liestal, Switzerland;5. Section of Endocrine Surgery, Division of General Surgery, Department of Surgery, Allgemeines Krankenhaus Wien, Vienna, Austria |