1. Division of Gastroenterology Washington University School of Medicine St. Louis MO USA
2. CHU de Bordeaux Centre Medico‐chirurgical Magellan Hôpital Haut‐Lévêque Gastroenterology Department Université de Bordeaux Bordeaux France
3. Department of Gastroenterology Sir HN Reliance Foundation Hospital Mumbai India
4. Clínica Alemana de Santiago Facultad de Medicina Universidad del Desarrollo Santiago de Chile Chile
5. Departamento de Gastroenterología y Laboratorio de Motilidad Gastrointestinal Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán Tlalpan Mexico
6. Division of Gastroenterology University of Alberta Edmonton Canada
7. Division of Gastroenterology and Hepatology University Hospital Zurich Zurich Switzerland
8. Center for Esophageal Diseases University of California San Diego CA USA
9. Università degli Studi di MilanoFondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
10. Division of Gastroenterology and Hepatology Northwestern University Feinberg School of Medicine Chicago IL USA