Colonic Diseases, Functional

• Furiex Research Site — Athens, Alabama, United States
• Furiex Research Site — Birmingham, Alabama, United States
• Furiex Research Site — Foley, Alabama, United States
• Furiex Research Site — Huntsville, Alabama, United States

• Aou Federico Ii — Naples, Italy

Not specified

• Helsinki University Hospital — Helsinki, Finland

• Child and Adolescent Psychiatry (CAP) Research Center — Stockholm, County of Stockholm, Sweden

• Uppsala University — Uppsala, Uppsala County, Sweden

• Connecticut Children's Hospital — Hartford, Connecticut, United States
• Childrens Memorial Hospital — Chicago, Illinois, United States
• LSU Health Sciences Center — New Orleans, Louisiana, United States
• Children's Hospital Boston — Boston, Massachusetts, United States

• Dietetic Service, HKSH — Hong Kong

• Georgetown University — Washington D.C., District of Columbia, United States

• University of Miami — Miami, Florida, United States