University of Maryland Medical Center, Baltimore, Maryland, United States
University of Pennsylvania Abramson Cancer Center, Philadelphia, Pennsylvania, United States
University of Pittsburgh Medical Center/Hillman Cancer Center, Pittsburgh, Pennsylvania, United States
Digestive Disease Associates, PA, Baltimore, Maryland, United States
St.Louis University, Saint Louis, Missouri, United States
Medical Pro-care, Flushing, New York, United States
Gleneagles Global Hospital, Hyderabad, India
Gordon and Leslie Diamond Health Care Centre, Vancouver, British Columbia, Canada
Stanford University Medical Center, Palo Alto, California, United States
University of Miami, Miami, Florida, United States
Spitatul Clinic de Boli Infectioase Constanta, Constanta, Romania
Barts and The London NHS Trust Royal London Hospital, London, United Kingdom
Be Part Yoluntu Centre, Cape Town, South Africa
Universita degli Studi di Pavia - Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
Joint Clinical Research Centre, Kampala, Uganda