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1 Endoscopy Unit, Institut Clínic de Malalties Digestives i Metabòliques (ICMDM) Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universitat de Barcelona, Barcelona, Spain.
2 Department of Medicine, Division of Digestive and Liver Diseases, New York-Presbyterian Hospital/Columbia University Irving Medical Center, New York, New York, USA.
1 Endoscopy Unit, Institut Clínic de Malalties Digestives i Metabòliques (ICMDM) Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universitat de Barcelona, Barcelona, Spain.
2 Department of Medicine, Division of Digestive and Liver Diseases, New York-Presbyterian Hospital/Columbia University Irving Medical Center, New York, New York, USA.