1. Clinic of Gastroenterology and Hepatology; Cantonal Hospital St. Gallen; St. Gallen Switzerland
2. Department of Nursing; Cantonal Hospital St. Gallen; St. Gallen Switzerland
3. Institute of Nursing; Zurich University of Applied Sciences (ZUAS); Winterthur Switzerland
4. Department of Abdomen and Metabolism; University Hospital Zurich; Zurich Switzerland
5. Institute of Nursing Science; Faculty of Medicine; University of Basel; Basel Switzerland