1. Digestive Endoscopy UnitFondazione Policlinico Universitario A. Gemelli IRCCSRomaItalia
2. The Royal Marsden NHS Foundation TrustLondonUK
3. Charles UniversityFaculty of Medicine in Hradec KraloveUniversity Hospital Hradec Kralove2nd Department of Internal Medicine – GastroenterologyHradec KraloveCzech Republic
4. Centre for Endoscopic Research Therapeutics and Training – CERTTUniversità Cattolica del Sacro CuoreRomaItalia
5. Department of GastroenterologyYokohama City University Graduate School of MedicineYokohamaJapan
6. Department of GastroenterologyYokohama Minami Kyosai HospitalYokohamaJapan
7. Chair of Digestive EndoscopyIHU-USIASUniversity of StrasbourgStrasbourgFrance