Digestive System Disease

• University of Alabama Birmingham — Birmingham, Alabama, United States
• University of Arizona — Tucson, Arizona, United States
• Jennifer Moreno Department of Veterans Affairs Medical Cneter — San Diego, California, United States
• Kaiser Permanente Northern California — Walnut Creek, California, United States

• Hospital Universiti Sains Malaysia — Kubang Kerian, Kelantan, Malaysia

• Institut de cancérologie Strasbourg Europe — Strasbourg, France

• Children's Hospital Colorado — Aurora, Colorado, United States
• Boston Children's Hospital — Boston, Massachusetts, United States

• Imperial College London — London, United Kingdom

• Complejo Hospitalario Universitario Insular Materno-Infantil — Las Palmas de Gran Canaria, Spain
• Hospital Universitario Ramón y Cajal — Madrid, Spain
• Hospital Universitario de Fuenlabrada — Madrid, Spain
• Hospital Universitario Doce De Octobre — Madrid, Spain

• Hôpital Privé Jean Mermoz — Lyon, France

• Kyung Hee University Hospital at Gangdong — Seoul, Gangdong-gu, South Korea

Not specified

• GSK Investigational Site — Miami, Florida, United States
• GSK Investigational Site — Chicago, Illinois, United States
• GSK Investigational Site — Boston, Massachusetts, United States
• GSK Investigational Site — St Louis, Missouri, United States