Gastroenteritis

• Digestive Health Clinic (there may be other sites in this country) — Richmond Hill, Canada
• Magen-Darm-Zentrum, Facharztzentrum Eppendorf (there may be other sites in this country) — Hamburg, Germany
• St. Vincent's University Hospital (there may be other sites in this country) — Dublin, Ireland
• Investigational site (there may be other sites in this country) — Bologna, Italy

• Children's Hospital of Philadelphia — Philadelphia, Pennsylvania, United States

• Vanderbilt University Medical Center — Nashville, Tennessee, United States
• Texas Digestive Disease Consultants — Southlake, Texas, United States
• Virginia Mason Medical Center — Seattle, Washington, United States
• University of Calgary — Calgary, Alberta, Canada

• Nationwide Children's Hospital — Columbus, Ohio, United States

• University of Maryland — Baltimore, Maryland, United States
• Johns Hopkins Medical Institute — Baltimore, Maryland, United States

Not specified

• ALPCO — Salem, New Hampshire, United States

• Leeds Teaching Hospitals NHS Trust — Leeds, United Kingdom

• Kyungpook National Univ Hosp /ID# 153133 — Daegu, Daegu Gwang Yeogsi, South Korea
• St. Vincent's Hospital /ID# 138455 — Suwon, Gyeonggido, South Korea
• Ajou University Hospital /ID# 138457 — Suwon, Gyeonggido, South Korea
• Inje University Busan Paik Hospital /ID# 138451 — Pusan, Gyeongsangbuk-do, South Korea

• Birmingham Gastroenterology Associates — Birmingham, Alabama, United States
• First Care Family Doctors South — Fayetteville, Arkansas, United States
• Little Rock Diagnostic Clinic — Little Rock, Arkansas, United States
• AGMG Clinical Research — Anaheim, California, United States