Department of visceral and transplant surgery, Bern University Hospital, Bern, Switzerland
Dpt of Gastroenterology, Bern University Hospital, Bern, Switzerland
University Hospital Bern, Bern, Switzerland
Department of visceral- and transplant surgery, Bern, Switzerland
Department of Cardiology, University Hospital Bern, Bern, Switzerland
Inselspital, Bern, Switzerland
University Hospital Bern, Bern, Switzerland
Department of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
University of Bern, Department of Dermatology, Bern, Switzerland