1. St. Jude Children's Research Hospital Memphis Tennessee USA
2. Warren Alpert Medical School of Brown University Providence Rhode Island USA
3. Belarusian Research Center for Pediatric Oncology Hematology and Immunology Minsk Belarus
4. Belarusian Clinical Center of Palliative Care for Children Minsk Belarus
5. Dmitry Rogachev National Research Center of Pediatric Hematology Oncology and Immunology Moscow Russia
6. Russian Scientific Center of Roengenology and Radiology Moscow Russia
7. Pyrogov Medical University Moscow Russia
8. Morozovskaya Children's City Clinical Hospital Moscow Russia
9. N.N. Blokhin National Medical Research Center of Oncology Moscow Russia
10. Yerevan State Medical University After Mkhitar Heratsi Yerevan Armenia
11. George Washington University The Milken Institute School of Public Health Washington, District of Columbia USA
12. The Republican Center for Hematology and Blood Transfusion Tashkent Uzbekistan
13. Institute of Oncology of Republic of Moldova Moldova Chisinau
14. Republican Scientific and Practical Center for Pediatric Surgery Minsk Belarus
15. Raisa Gorbacheva Memorial Research Institute for Pediatric Oncology Hematology and Transplantation St. Petersburg Russia
16. Benioff Children's Hospitals University of California San Francisco San Francisco California USA
17. Dana Farber Cancer Institute Boston Massachusetts USA
18. University of Minnesota Minneapolis Minnesota USA
19. Northwestern University Chicago Illinois USA