1. Gastroenterology and Hepatology Department; Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL); Lausanne Switzerland
2. Diagnoplex SA; Lausanne Switzerland
3. National Center for Competence in Research (NCCR); Molecular Oncology; Swiss Institute for Experimental Cancer Research (ISREC)-Ecole Polytechnique Fédérale de Lausanne (EPFL); Lausanne Switzerland
4. Department of Medicine; Faculty of Science; University of Fribourg; Fribourg Switzerland