[1] Hosp Univ Bellvitge, Dept Digest Dis, Endoscopy Unit, Barcelona, Spain
[2] Bellvitge Biomed Res Inst IDIBELL, Barcelona, Spain
[3] Univ Barcelona UB, Sch Med & Hlth Sci, Dept Clin Sci, Barcelona, Spain
[4] Hosp Gen Granollers Granollers, Digest Dis Unit, Barcelona, Spain
[5] Inst Catala Oncol ICO, Psychooncol Serv, Barcelona, Spain
[6] Univ Cent Catalunya, Univ Vic, Sch Educ Translat Sports & Psychol, Dept Psychol,UV UCC, Vic, Barcelona, Spain
[7] Hosp Univ Bellvitge, Clin Res Support Unit, Barcelona, Spain
[8] Hosp Univ Mutua Terrassa, Dept Digest Dis, Endoscopy Unit, Terrassa, Barcelona, Spain
[9] Inst Salud Carlos III Madrid, Ctr Invest Biomed Red Enfermedades Hepat & Digest, Madrid, Spain
[10] Univ Pompeu Fabra UPF, Tecnocampus Mataro Maresme Fdn, Barcelona, Spain
[11] Inst Catala Oncol ICO, Dept Med Oncol, Barcelona, Spain
[12] Hosp Univ Bellvitge, Eating Disorders Unit, Dept Psychiat, Barcelona, Spain
[13] Inst Salud Carlos III Madrid, Ctr Invest Biomed Red Fisiopatol Obes & Nutr CIBE, Madrid, Spain
[14] Univ Oberta Catalunya UOC, Fac Hlth Sci, Barcelona, Spain