1. Sheba Medical Center, Gastroenterology, Ramat Gan, Israel
2. Catholic University – Digestive Endoscopy Unit, Rome, Italy
3. Fondazione Poliambulanza Istituto Ospedaliero – Digestive Endoscopy, Brescia, Italy
4. Medtronic Inc, Yoqneam, Israel
5. Policlinico Universitario Agostino Gemelli – Digestive Endoscopy Unit, Rome, Italy
6. Complejo Hospitalario de Navarra – Servicio de Digestivom Pamplona, Spain
7. Shaare Zedek Medical Center – Gastroenterology, Jerusalem, Israel
8. Tel Aviv Sourasky Medical Ceneter – Gastroenterology, Tel Aviv, Irael