Royal Prince Alfred Hospital; Medical Oncology, Camperdown, New South Wales, Australia
Cliniques Universitaires St-Luc, Bruxelles, Belgium
ZNA Stuivenberg, Antwerpen, Belgium
Johns Hopkins Universtiy; Radiology Dept, Baltimore, Maryland, United States
Parexel International; Harbor Hospital Center, Baltimore, Maryland, United States
HonorHealth Research Institute - Bisgrove, Scottsdale, Arizona, United States
UCLA, Los Angeles, California, United States
Yale University, New Haven, Connecticut, United States
Medical center Medconsult Pleven OOD, Pleven, Bulgaria
Centro de Investigaciones Medicas Mar Del Plata, Mar del Plata, Argentina
DCC Sv. Pantaleymon OOD, Pleven, Bulgaria
Duke University, Durham, North Carolina, United States
Hospital Infantil de México "Federico Gomez"; Rheumatology, Mexico, Mexico
Hospital Universitario Dr. Jose Eleuterio Gonzalez; Pediatria, Monterrey, Mexico
Shafran Gastroenterology Center, Winter Park, Florida, United States
Northwestern University-Feinberg School of Medicine; Division of Gastroenterology and Hepatology, Chicago, Illinois, United States
Southwest Gastroenterology, Oak Lawn, Illinois, United States