Proctitis

• Birmingham, Alabama, United States
• Huntsville, Alabama, United States
• Jonesboro, Arkansas, United States
• National City, California, United States

• Dothan, Alabama, United States
• Mesa, Arizona, United States
• Tucson, Arizona, United States
• Little Rock, Arkansas, United States

• Charité-Campus Benjamin Franklin Universitätsmedizin Berlin — Berlin, Germany
• Evang. Krankenhaus Kalk, Medical Department — Cologne, Germany

• St. Marks Hospital (London North West Healthcare NHS Trust) — Harrow, London, United Kingdom
• Queen Elizabeth II Hospital — Kings Lynn, Norfolk, United Kingdom
• Bart's Health NHS Trust — London, United Kingdom
• Royal Free Hospital — London, United Kingdom

• Liverpool Hospital — Sydney, New South Wales, Australia
• Royal Brisbane and Women's Hospital — Brisbane, Queensland, Australia
• Royal Adelaide Hospital — Adelaide, South Australia, Australia
• Centre for IBD, Fremantle Hospital — Fremantle, Western Australia, Australia

• Academic Medical Center — Amsterdam, North Holland, Netherlands

Not specified

• Aarhus University Hospital — Aarhus N, Denmark
• Gødstrup Regional Hospital — Herning, Denmark
• Randers Regional Hospital — Randers, Denmark
• Silkeborg Regional Hospital — Silkeborg, Denmark