Complejo Hospitalario Jaén, Jaén, Andalucía, Spain
Hospital Clínico Lozano Blesa, Zaragoza, Aragón, Spain
Hospital Navarra, Pamplona, Navarra, Spain
Liverpool Hospital, Liverpool, New South Wales, Australia
Military Medical Academy, Belgrade, Serbia
John Radcliffe Hospital, Oxford, United Kingdom
Memorial Sloan Kettering Cancer Center, New York, New York, United States
Dana-Farber Cancer Institute, Boston, Massachusetts, United States
Mayo Clinic Phoenix, Phoenix, Arizona, United States
Local Institution - 350, Boston, Massachusetts, United States
Yale University School of Medicine, New Haven, Connecticut, United States
H Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States
Universitatsklinikum Bonn, Bonn, Germany
Aghia Sofia Children's Hosptial, Athens, Goudi, Greece
Fondazione IRCCS Ca Granda Ospedale Maggiore, Milano, Italy
American University of Beirut Medical Center, Beirut, Lebanon
Tufts - New England Medical Center, Boston, Massachusetts, United States
Gibbs Cancer Center and Research Institute, Spartanburg, South Carolina, United States
Northwestern University, Chicago, Illinois, United States
Local Institution - 108, Boston, Massachusetts, United States
Local Institution - 115, Boston, Massachusetts, United States
Local Institution - 504, Madrid, Spain
Children's Hospital of Los Angeles, Los Angeles, California, United States
Royal Adelaide Hospital Institute of Medical and Veterinary Science, Adelaide, South Australia, Australia
Laiko General Hospital of Athens, Ampelokipi - Athens, Greece
Multiprofile Hospotal for Active Treatment- Sveti Nikolay Chudotvoretz - LOM EOOD, Lom, Bulgaria
Fakultna nemocnica s poliklinikou F. D. Roosevelta, Banska Bystrica, Slovakia
Multiprofile Hospital for Active Treatment Doverie AD, Sofia, Bulgaria