Colonic Diseases, Functional

• Gastroenterology Consultants Inc. — Tuscaloosa, Alabama, United States
• Digestive Health Research Unit — Scottsdale, Arizona, United States
• Lynn Institute of the Ozarks — Little Rock, Arkansas, United States
• Adam D. Karns, MD — Beverly Hills, California, United States

• University Hospital — Linköping, Sweden

• Mayo Clinic — Rochester, Minnesota, United States

• Longhua hospital — Shanghai, Shanghai Municipality, China

• Physiology Unit-Rouen university Hospital — Rouen, France

Not specified

• Texas Children's Hospital — Houston, Texas, United States

• Microbia Investigational Site — Huntsville, Alabama, United States
• Microbia Investigational Site — Chandler, Arizona, United States
• Microbia Investigational Site — Tuscon, Arizona, United States
• Microbia Investigational Site — Sherwood, Arkansas, United States

• Forest Investigative Site 037 — Birmingham, Alabama, United States
• Forest Investigative Site 036 — Birmingham, Alabama, United States
• Forest Investigative Site 135 — Hueytown, Alabama, United States
• Forest Investigative Site 014 — Huntsville, Alabama, United States

• University Hospital Maastricht — Maastricht, Netherlands