Clinimark, Louisville, Colorado, United States
St Mary's Hospital, London, United Kingdom
Franklin Gastroenterology, PLLC, Franklin, Tennessee, United States
Indiana University Hospital, Indianapolis, Indiana, United States
Pinnacle Research Group, LLC, Anniston, Alabama, United States
University of Colorado School of Medicine, Aurora, Colorado, United States
Ocala Lung and Critical Care, Ocala, Florida, United States
East Texas Medical Center, Tyler, Texas, United States
Providence Health Center, Waco, Texas, United States
Northwestern University, Chicago, Illinois, United States
Univeristy of California, Los Angeles, Los Angeles, California, United States
Gastrointestinal Associates, Knoxville, Tennessee, United States
Duke University Medical Center, Durham, North Carolina, United States
Mayo Clinic, Rochester, Minnesota, United States
University Hospital Frankfurt, Frankfurt, Germany
Weill Cornell Medical College, New York, New York, United States
Florida Hospital Celebration Health, Celebration, Florida, United States
Boulder Clinical Laboratory, Boulder, Colorado, United States