Gastric Outlet Obstruction

• Robert Wood Johnson University Hospital — New Brunswick, New Jersey, United States
• North Shore University Hospital — Manhasset, New York, United States
• Long Island Jewish Medical Center — New Hyde Park, New York, United States
• Lenox Hill Hospital — New York, United States

• Westmount Surgical Center — Westmount, Quebec, Canada

• IRCCS San Raffaele Scientific Institute — Milan, Italy

• Hôpital la pitié salpêtrière, APHP — Paris, France
• IRCCS San Raffaele Scientific Institute — Milan, Italy
• ISMETT - University of Palermo — Palermo, Italy
• São João University Hospital — Porto, Portugal

• AZ Sint-Jan Brugge — Bruges, Belgium
• University Hospital, Ghent — Ghent, Belgium

• General University Hospital — Prague, Czechia

Not specified

• Yale University — New Haven, Connecticut, United States
• The Johns Hopkins Hospital — Baltimore, Maryland, United States
• Wake Forest Baptist University — Winston-Salem, North Carolina, United States
• The Research Institute of McGill University Health Centre — Montreal, Quebec, Canada

• Aichi Cancer Center Hospital — Nagoya, Aichi-ken, Japan
• Teine Keijinkai Hospital — Sapporo, Hokkaido, Japan
• Saitama Medical University International Medical Center — Hidaka, Saitama, Japan
• The University of Tokyo Hospital — Bunkyō-Ku, Tokyo, Japan

• Department of Surgery, Prince of Wales Hospital — Hong Kong