The University of Chicago, Chicago, Illinois, United States
MD Anderson, Houston, Texas, United States
University of Kansas Cancer Center, Westwood, Kansas, United States
Ospedale S. Gerardo, Monza, Italy
Istituto Nazionale dei Tumori, Milan, Italy
IEO -Istituto Europeo di Oncologia-, Milan, Italy
Woodlands Medical Specialists, Pensacola, Florida, United States
Weill Cornell Medical Center, New York, New York, United States
Florida Cancer Specialists North, Saint Petersburg, Florida, United States
Department of Chemotherapy, Complex Oncology Center, Ruse, Bulgaria
Chemotherapy Department, Complex Oncology Center, Shumen, Bulgaria
Petz Aladar County Teaching Hospital, Center of Oncologic Radiology Hungary, Gyor, Hungary
A. I. duPont Hospital for Children, Wilmington, Delaware, United States
Nemours Children's Clinic, Pensacola, Florida, United States
Medical University of South Carolina, Charleston, South Carolina, United States
Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States
Department of Intensive Care and Anesthesiology, Olsztyn, Poland
Shoals Medical Research, LLC, Sheffield, Alabama, United States
MD Anderson Cancer Center, Houston, Texas, United States
Veterans Administration New Jersey Health Care System, East Orange, New Jersey, United States
East Valley Hematology and Oncology Medical Group, Burbank, California, United States
Facey Medical Group, Mission Hills, California, United States
Northern Utah Associates [Hematology/ Oncology], Ogden, Utah, United States
Genesis Cancer Centre, Hot Springs, Arkansas, United States
Cancer Specialists of South Texas, P.A., Corpus Christi, Texas, United States
The John R Marsh Cancer Center, Hagerstown, Maryland, United States
Compassionate Cancer Centre Medical Group, Fountain Valley, California, United States
Federal State Institution St. Petersburg Research Institute of Ear, Throat, Nose and Speech under the Federal Agency for High-Tech Medical Care, St. Petersburg, Russian Federation
State Healthcare Institution 'Regional Pediatric Clinical Hospital', Yaroslavl, Russian Federation
Cherkassy Regional Hospital, Pediatric Surgery Department, Cherkassy, Ukraine