Colonic Diseases, Functional

• Childrens Hospital — New Orleans, Louisiana, United States

• Sahlgrenska University Hospital — Gothenburg, Sweden
• Karolinska University Hospital — Huddinge, Sweden
• Norrland's University Hospital — Umeå, Sweden

• University of Michigan Health System — Ann Arbor, Michigan, United States

• Huntsville, Alabama, United States
• Sherwood, Arizona, United States
• Little Rock, Arkansas, United States
• Artesia, California, United States

• GSK Investigational Site — Adelaide, South Australia, Australia

• University Hospital of North Norway — Harstad, Norway

• Maastricht University Medical Center — Maastricht, Netherlands

Not specified

Not specified

• UCLA Pediatric Pain Program — Los Angeles, California, United States