1. Department of Gastroenterology and Hepatology, Radboud University Medical Centre, Nijmegen, the Netherlands
2. Department of Gastroenterology and Hepatology, Jeroen Bosch Hospital, ‘s-Hertogenbosch, the Netherlands
3. Department of Gastroenterology and Hepatology, Canisius Wilhelmina Hospital, Nijmegen, the Netherlands
4. Department of Gastroenterology and Hepatology, Viecuri Medical Centre, Venlo, the Netherlands
5. Department of Gastroenterology and Hepatology, Gelderse Vallei Hospital, Ede, the Netherlands
6. Department of Surgery, Radboud University Medical Centre, Nijmegen, the Netherlands
7. Department of Gastroenterology and Hepatology, Maastricht University Medical Centre, Maastricht, the Netherlands
8. Scientific Centre for Quality of Healthcare, IQ Healthcare, Radboud Institute for Health Sciences, Radboud University Medical Centre, Nijmegen, the Netherlands