[1] Manchester Royal Infirm, Dept Gastroenterol, Manchester, Lancs, England
[2] Inst Portugues Oncol Lisboan Francisco Gentil, Lisbon, Portugal
[3] Citta Salute & Sci Torino, Gastroenterol U, Turin, Italy
[4] Robert Bosch Krankenhaus, Gastroenterol Dept, Stuttgart, Germany
[5] Hosp Clin San Carlos, IBD Unit, Serv Aparato Digest, Madrid, Spain
[6] Univ Hosp Leuven, Gastroenterol Dept, Leuven, Belgium
[7] Univ Paris Sud, Kremlin Bicetre Hosp, AP HP, Gastroenterol Dept, Paris, France
[8] Osped S Filippo Neri, Gastroenterol Dept, Rome, Italy
[9] Bellvitges Hosp, Gastroenterol Dept, Barcelona, Spain
[10] Ctr Hosp Porto, Gastroenterol Dept, Porto, Portugal
[11] Univ Padua, Padua, Italy
[12] Mater Dei Hosp, Msida, Malta
[13] Maria Sklodowska Curie Mem Canc Ctr, Warsaw, Poland
[14] Inst Oncol, Gastroenterol Dept, Warsaw, Poland
[15] Triemli Hosp, Zurich, Switzerland
[16] Hosp Univ Puerta Hierro Madrid, Madrid, Spain
[17] Univ Crete, Iraklion, Greece
[18] Radboud Univ Nijmegen, Med Ctr, Nijmegen, Netherlands
[19] Clin Univ Valladolid, Valladolid, Spain
[20] Osped San Giuseppe, UOC Gastroenterol, Florence, Italy
[21] Hosp Univ Germans Trias Pujol i Badalona, Barcelona, Spain
[22] Theagenion Canc Hosp Thessaloniki, Thessaloniki, Greece
[23] Charite, Berlin, Germany
[24] Clin Bercy, Paris, France
[25] RCCS Ist Clin Humanitas, Gastroenterol Dept, Milan, Italy
[26] ECCO CONFER Steering Comm, Vienna, Austria