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
Texas Digestive Disease Consultants - Dallas, Arlington, Texas, United States
ClinSearch LLC, Chattanooga, Tennessee, United States
CHUS Hopital Fleurimont, Sherbrooke, Quebec, Canada
Local Institution - 201, Toronto, Ontario, Canada
Local Institution - 904, Adelaide, South Australia, Australia
Local Institution - 111, Chicago, Illinois, United States
Local Institution - 110, Berkeley, California, United States
Local Institution - 123, Port Charlotte, Florida, United States
Local Institution - 179, Round Rock, Texas, United States
LKH Feldkirch, Feldkirch, Austria
KH Krems, Krems, Austria
LKH Leoben, Leoben, Austria
AKH, Universitätsklinik für Innere Medizin I /Klin. Abteilung für Onkologie, Vienna, Austria
LKH Feldkirch, Intern E, Hämatologie, Feldkirch, Austria
SCRI-CCCIT gemeinnützige GmbH & Universitätsklinikum der PMU Salzburg Gemeinnützige Salzburger Landeskliniken BetriebsgmbH, Salzburg, Austria