1. Department of GastroenterologyUniversity Hospital of Santiago de CompostelaSantiago de CompostelaSpain
2. Istanbul Faculty of MedicineIstanbul UniversityIstanbulTurkey
3. Department of Upper GastrointestinalPancreatic and Biliary DiseasesMoscow Clinical Scientific CenterMoscowRussia
4. Digestive Endoscopy DepartmentUniversity Clinic ‘Dr Dragisa Misovic‐Dedinje’BelgradeSerbia
5. School of MedicineUniversity of BelgradeBelgradeSerbia
6. Gastroenterology DepartmentAlicante University General HospitalAlicanteSpain
7. Gastroenterology and Interventional Endoscopy DepartmentClinical Emergency Hospital BucharestBucharestRomania
8. Pancreato‐Biliary Endoscopy and Endosonography DivisionIRCCS San Raffaele Scientific InstituteMilanItaly