Research Site, St. Petersburg, Russian Federation
Research Site, Zürich, Switzerland
Research Site, Madrid, Spain
Anaheim Clinical Trials, Anaheim, California, United States
Colon and Rectal Medical Services, Los Angeles, California, United States
Cleveland Clinic Foundation Digestive Disease Institute, Cleveland, Ohio, United States
Mayo Clinic, Scottsdale, Arizona, United States
Santarus Clinical Investigational Site 9005, Moscow, Russian Federation
Santarus Clinical Investigational Site 4003, Pleven, Bulgaria
Santarus Clinical Investigational Site 4001, Sofia, Bulgaria
Research Site, Quebec, Canada
Southwest Gastroenterology Assoc, Oak Lawn, Illinois, United States
Medex Healthcare Research, Inc., Chicago, Illinois, United States
Advance Medical Research Service Corp, Miami, Florida, United States