1. Department Allgemeine Innere Medizin der Kliniken (DAIM) Hirslanden Beau Site, Salem und Permanence, 3013 Bern, Switzerland
2. Division of Pancreatobiliary Endoscopy and Endosonography, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milan, Italy
3. Department of Gastroenterology Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
4. Medical Department B, University Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany
5. Medizinische Klinik I, Sana Kliniken Luebeck, 23560 Luebeck, Germany
6. Department of Medical and Surgical Sciences, Gastrointestinal Unit, University of Bologna/Hospital of Imola, 40126 Bologna, Italy
7. Medical Department II, Helios Klinikum Meiningen, 98617 Meiningen, Germany
8. Klinikum Würzburg Mitte, Standort Juliusspital, 97074 Würzburg, Germany
9. Medical Department, Krankenhaus Maerkisch-Oderland, 15441 Strausberg and Brandenburg Institute of Clinical Ultrasound at Medical University Brandenburg, 16816 Neuruppin, Germany
10. Gastroenterology & Hepatology Department, King Fahad Medical City, Riyadh 11525, Saudi Arabia
11. Faculty of Medicine, King Abdulaziz University, Gastrointestinal Oncology Unit, King Abdul-Aziz University Hospital (KAUH), Jeddah 22252, Saudi Arabia
12. Hopital Privé J Mermoz Ramsay Générale de Santé, 69008 Lyon, France
13. Department of Gastroenterology, Clinic of Internal Medicine, Colentina Clinical Hospital, Carol Davila University of Medicine, 050474 Bucharest, Romania