Colonic Diseases

• University of California San Francisco — San Francisco, California, United States
• Children's Health Care of Atlanta — Atlanta, Georgia, United States
• University of Chicago Children's Hospital — Chicago, Illinois, United States
• MassGeneral Hospital for Children — Boston, Massachusetts, United States

• UNC Center for Functional GI Motility Disorders — Chapel Hill, North Carolina, United States
• Centre for Addiction and Mental Health, Clark Site — Toronto, Ontario, Canada

• Department of Gastroenterology & Hepatology — Basel, Basel-Stand, Switzerland

• Pfizer Investigational Site — Birmgingham, Alabama, United States
• Pfizer Investigational Site — Birmingham, Alabama, United States
• Pfizer Investigational Site — Birmngham, Alabama, United States
• Pfizer Investigational Site — Mobile, Alabama, United States

Not specified

Not specified

• Evanston Northwestern Healthcare (ENH) internal medicine, family practice, and OB/GYN practices — Evanston, Illinois, United States
• American Academy of Family Physicians National Research Network (AAFP-NRN). — Leawood, Kansas, United States
• Great Lakes Research into Practice Network (GRIN) — Ann Arbor, Michigan, United States

• Royal Marsden Hospital — Sutton, Surrey, United Kingdom

• Royal Marsden Hospital — Sutton, Surrey, United Kingdom

• Memorial Sloan Kettering Cancer Center — New York, United States