Affiliations

• ¹ Department of Surgery, Academic Medical Center [AMC], Amsterdam, The Netherlands.
• ² Department of Surgery, St. Mark's Hospital, Harrow, UK.
• ³ Department of Surgery, ASST Fatebenefratelli Sacco - Ospedale "Luigi Sacco" Polo Universitario, Milan, Italy.
• ⁴ Department of Surgery, NH Hospital, a.s., Horovice, Czech Republic.
• ⁵ Department of Surgery, Sheba Medical Center, Tel Hashomer, Israel.
• ⁶ Surgical Coloproctology Unit, University of Naples Federico II, Naples, Italy.
• ⁷ Department of Abdominal Surgery, UZ Leuven, Campus Gasthuisberg, Leuven, Belgium.
• ⁸ Department of Colorectal Surgery, Beaumont Hospital, Dublin, Ireland.
• ⁹ Pediatric Gastroenterology Unit, Hospital S. João [University Hospital], Porto, Portugal.
• ¹⁰ Department of Gastroenterology and Hepatology, Sheba Medical Center, Tel Hashomer, Israel.
• ¹¹ Servicio de Cirugía, Complejo Asistencial Universitario de León, León, Spain.
• ¹² Colorectal Unit, Ankara University Medical School, Ankara, Turkey.
• ¹³ University Department of Paediatrics and Referral Center for Paediatric Gastroenterology & Nutrition, Children's Hospital Zagreb, Zagreb, Croatia.
• ¹⁴ Department of Gastroenterology, Hepatology, Feeding Disorders, and Pediatrics, Children's Memorial Health Institute, Warsaw, Poland.
• ¹⁵ Paediatric Gastroenterology of the Children's Hospital, University of Helsinki, Helsinki, Finland.
• ¹⁶ Department of General and Digestive Surgery, Hôpital Saint-Antoine and University Paris VI, Paris, France.
• ¹⁷ Department of Surgery, Hospital Universitari Joan XXIII de Tarragona, Tarragona, Spain.
• ¹⁸ Department of Colorectal Surgery, Beaujon Hospital [APHP] and University Paris VII Denis-Diderot, Clichy, France.
• ¹⁹ Academic Department of Surgery, University of Birmingham, Birmingham, UK.
• ²⁰ Department of Paediatric Gastroenterology, Royal Hospital for Children, Glasgow, UK.
• ²¹ Department of Surgery, Sheba Medical Center, Ramat Gan, Israel.
• ²² IBD Unit, University of Birmingham, Birmingham, St Mark's Hospital, London, UK.