1 Department of Gastroenterology and Hepatology, University Hospital Leuven, Leuven, Belgium.
2 Gastroenterology Department, Portuguese Oncology Institute, Coimbra, Portugal; Center for Health Technology and Services Research (CINTESIS), University of Porto, Porto, Portugal.
3 Institut des Maladies de l'Appareil Digestif, CHU de Nantes, Nantes, France.
4 Gastroenterology Department, University of Medicine and Pharmacy, Targu Mures, Romania.
5 Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
6 Endoscopy, Yaroslavl Regional Cancer Hospital, Yaroslavl, Russian Federation.
7 Klinik für Gastroenterologie und interventionelle Endoskopie, Barmherzige Brüder Regensburg, Regensburg, Germany.
8 NIHR Nottingham Digestive Diseases Biomedical Research Unit, Nottingham University Hospitals NHS Trust, Queen's Medical Centre Campus, Nottingham, UK.
9 Department of Gastroenterology and Hepatology, St Antonius Hospital, Nieuwegein, The Netherlands.
10 Digestive Endoscopy Unit, Agostino Gemelli University Hospital, Rome, Italy.
11 Department of Internal Medicine, Joseph's Hospital, Warendorf, Germany.
12 Department of Gastroenterology, Gloucestershire Hospitals NHS Foundation Trust, Gloucestershire, UK.
13 Department of Health Management and Health Economy and KG Jebsen Centre for Colorectal Cancer, University of Oslo, Oslo, Norway; Department of Gastroenterological Oncology, The Maria Sklodowska-Curie Memorial Cancer Centre and Institute of Oncology, and Medical Center for Postgraduate Education, Warsaw, Poland.
14 Department of Health Management and Health Economy and KG Jebsen Centre for Colorectal Cancer, University of Oslo, Oslo, Norway; Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway.
15 Centre for Technology Enabled Research, Coventry University, Coventry, UK.
16 CPO Piemonte, AOU Città della Salute e della Scienza, Torino, Italy.
17 Center for Health Technology and Services Research (CINTESIS), University of Porto, Porto, Portugal; Servicio de Gastroenterologia, Instituto Portugues de Oncologia Francisco Gentil, Porto, Portugal.
18 Department of Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, UK; School of Medicine, Durham University, Durham, UK.