1. 1Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
2. 2Hematopoietic Stem Cell Transplantation Department, Morozov Children Hospital, Moscow, Russia
3. 3Hematology and Chemotherapy Department №1, Russian Children’s Clinical Hospital, Moscow, Russia
4. 4Pediatric Hematology and Oncology Department, Piotrovich Regional Children Clinical Hospital, Khabarovsk, Russia