1. Belarusian Research Center for Pediatric Oncology, Hematology and Immunology; Minsk Belarus
2. Clinical laboratory; Belarusian Research Center for Pediatric Oncology, Hematology and Immunology; Minsk Belarus
3. Pediatric Pathology Department; Municipal Bureau of Clinical Pathology; Minsk Belarus
4. Laboratory of Cellular Biotechnology and Cytotherapy; Belarusian Research Center for Pediatric Oncology, Hematology and Immunology; Minsk Belarus