Intestinal Perforation

• University of California San Diego — San Diego, California, United States
• Sharp Mary Birch Hospital for Women and Newborns — San Diego, California, United States
• University of California San Francisco — San Francisco, California, United States
• Mednax Neonatology of San Jose/Pediatrix Medical Group — San Jose, California, United States

• Stanford University — Stanford, California, United States

Not specified

• University Hospital Zurich, Department of Visceral and Transplant Surgery, Swiss Hepato-Pancreato-Biliary (HPB) Center — Zurich, Canton of Zurich, Switzerland
• Kantonsspital Graubünden — Chur, Kanton Graubünden, Switzerland
• University Hospital Vaudois (CHUV), Department of Visceral Surgery — Lausanne, Switzerland
• Kantonsspital Winterthur — Winterthur, Switzerland

• University Hospital Gasthuisberg — Leuven, Belgium