1. Department of Surgery, Academic Medical Centre, Amsterdam, The Netherlands
2. Department of Gastroenterology & Hepatology, Academic Medical Center, Amsterdam, The Netherlands
3. Tytgat Institute for Liver and Intestinal Research, Academic Medical Center, Amsterdam, The Netherlands
4. Department of Pathology, Academic Medical Centre, Amsterdam, The Netherlands
5. Department of Gastroenterology and Hepatology, St. Vincent’s Hospital, Dublin, Ireland
6. Department of Surgery, St. Vincent’s Hospital, Dublin, Ireland