Colonic Diseases, Functional

• Mayo Clinic — Rochester, Minnesota, United States
• Mayo Clinic Health System - Franciscan Healthcare in La Crosse — La Crosse, Wisconsin, United States

Not specified

• University of Missouri, Department of Internal Medicine — Columbia, Missouri, United States

• UCLA Pediatric Pain Management Clinic — Los Angeles, California, United States

• Eurofins Optimed — Gières, France
• Biofortis — Nantes, France

• Logan University, College of Chiropractic — Chesterfield, Missouri, United States

• Department of Gastroenterology, Qilu Hospital, Shandong University — Jinan, Shandong, China

• Aava Medical Centre — Helsinki, Finland

• University Hospital Vall d'Hebron — Barcelona, Catalonia, Spain

• Innlandet Hospital HF — Gjøvik, Oppland, Norway