Affiliation: | (1) Department of Gastroenterology,Hospital Universitario de la Princesa, and Centro de Investigaci?n Biom?dica en Red de Enfermedades Hep?ticas y Digestivas (CIBEREHD), Madrid, Spain;(2) Bridge Medical Centre, Crawley, West Sussex, UK;(3) Department of Gastroenterology, Athens Medical Center, Athens, Greece;(4) Institute of Medicine, Haukeland University Hospital, Bergen, Norway;(5) Center for Family and Community Medicine, Karolinska Institutet, Huddinge/Stockholm, Sweden;(6) Klinikum Salzgitter GmbH, Salzgitter, Germany;(7) AstraZeneca, Madrid, Spain |