Digestive System Fistula

• University of Louisville School of Medicine — Louisville, Kentucky, United States
• Our Lady of the Lake Regional Medical Center — Baton Rouge, Louisiana, United States
• University Surgical Associates — Providence, Rhode Island, United States
• St Josef's Hospital — Wiesbaden, Germany

• Ospedale Policlinico GB Rossi — Verona, Italy

• Skåne University Hospital — Malmö, Sweden

• Hospital Son Dureta — Palma de Mallorca, Balearic Islands, Spain
• Hospital San Juan de Dios del Aljarafe — Bormujos, Sevilla, Spain
• Hospital Juan Ramón Jimenez — Huelva, Spain
• Hospital Universitario La Paz — Madrid, Spain

• Universitary Clinical Surgery — Mannheim, Germany
• Lozano Blesa Clinical Hospital — Zaragoza, Aragon, Spain
• Virgen Del Camino Hospital — Pamplona, Navarre, Spain
• Mutua de Terrasa Hospital — Tarrasa, Tarragona, Spain

• Hospital Metropolitano — San Nicolás de los Garza, Nuevo León, Mexico

Not specified

• Mansoura university hospital — Al Mansurah, Dakahlia Governorate, Egypt

• Inonu University — Malatya, Turkey (Türkiye)

• Mansoura university hospital — Al Mansurah, Dakahlia Governorate, Egypt