Enterocolitis

• Memoral Sloan Kettering at Basking Ridge (Limited Protocol Activities) — Basking Ridge, New Jersey, United States
• Memorial Sloan Kettering Monmouth (All Protocol Activities) — Middletown, New Jersey, United States
• Memorial Sloan Kettering Bergen (All Protocol Activities) — Montvale, New Jersey, United States
• Memorial Sloan Kettering Suffolk-Commack (Limited protocol activity) — Commack, New York, United States

Not specified

• Cincinnati Children's Hospital — Cincinnati, Ohio, United States
• Children´s Hospital of Philadelphia — Philadelphia, Pennsylvania, United States
• Texas Children´s Hospital — Houston, Texas, United States
• Seattle Children´s Hospital — Seattle, Washington, United States

• Necker Hospital — Paris, France

• Aswan University Hospital — Aswān, Egypt

• University of Alberta — Edmonton, Alberta, Canada

• Duke University Medical Center — Durham, North Carolina, United States

• C.S. Mott Children's Hospital — Ann Arbor, Michigan, United States
• Children's Hospital of Buffalo — Buffalo, New York, United States

• Department of Rheumatology U, Aarhus Hospital — Aarhus, Denmark
• Regional Hospital of Horsens, Department of Medicine — Horsens, Denmark
• Regional Hospital of Randers, Department of Medicine — Randers, Denmark
• Regional Hospital of Silkeborg — Silkeborg, Denmark

• Johns Hopkins Medical Research Institute — Baltimore, Maryland, United States
• Michael E. DeBakey Veterans Affairs Medical Center — Houston, Texas, United States