1. Division of Gastroenterology and Hepatology, Geneva University Hospitals, Geneva, Switzerland
2. Digestive Endoscopy Unit, Catholic University, Rome, Italy
3. Department of Medicine, Ruhr University Bochum, Bochum, Germany
4. General Secretary of the European Society of Gastrointestinal Endoscopy (ESGE) Department of Hepatogastroenterology, Hôpital Edouard Herriot, Lyon, France