[1] Hop Europeen Georges Pompidou, Dept Gastroenterol, Paris, France
[2] Ctr Hosp Vila Nova Gaia & Espinho, Dept Gastroenterol, Vila Nova De Gaia, Portugal
[3] Hosp Clin Barcelona, Dept Gastroenterol, ICMDiM, Endoscopy Unit, Barcelona, Spain
[4] Inst Portugues Oncol Lisboa Francisco Gentil EPE, Dept Gastroenterol, Lisbon, Portugal
[5] Hosp Egas Moniz, Dept Gastroenterol, Ctr Hosp Lisboa Ocidental, Lisbon, Portugal
[6] Hosp Univ Morales Meseguer, Small Bowel Unit, Murcia, Spain
[7] Univ Navarra Clin, Dept Gastroenterol, Pamplona, Spain
[8] Ctr Hosp & Univ Coimbra, Gastroenterol Unit, Coimbra, Portugal
[9] Univ Coimbra, Fac Med, Coimbra, Portugal
[10] Hosp Senhora Oliveira, Dept Gastroenterol, Guimaraes, Portugal
[11] Univ Minho, ICVS 3Bs, Life & Hlth Sci Res Inst, PT Govt Associate Lab,Sch Med, Braga, Portugal
[12] Hosp Gen Univ Gregorio Maranon, Dept Gastroenterol, Endoscopy Unit, Madrid, Spain
[13] Ctr Hosp Sao Joao, Dept Gastroenterol, Porto, Portugal
[14] Complejo Hosp Navarra, Dept Gastroenterol, Navarra, Spain
[15] Hosp Univ Nuestra Senora Candelaria, Dept Gastroenterol, Gastrointestinal Endoscopy Unit, Tenerife, Spain
[16] Hosp Clin Univ Virgen Arrixaca, Dept Digest Dis, Unit Gastrointestinal Endoscopy, Murcia, Spain
[17] Hosp Badalona Germans Trias & Pujol, Dept Gastrointestinal Endoscopy, Badalona, Spain
[18] Complejo Hosp Univ A Coruna, Dept Gastroenterol, La Coruna, Spain
[19] Hosp Clin Univ Valencia, Dept Gastroenterol, Valencia, Spain
[20] Univ Seville, Hosp Univ Virgen Macarena, Dept Gastroenterol, Seville, Spain
[21] Hosp Clin San Carlos, Dept Gastroenterol, Madrid, Spain
[22] Ctr Hosp Univ Lisboa Cent, Hosp Santo Antonio Capuchos, Dept Gastroenterol, Lisbon, Portugal
[23] ManopH, Lab Endoscopia & Motilidade Digest, Porto, Portugal