Ann Hematol 2021 Jan 25. Epub 2021 Jan 25.
Department of Pediatric Hematology and Oncology, Collegium Medicum Bydgoszcz, Nicolaus Copernicus University Torun, Antoni Jurasz University Hospital No.1, ul. Sklodowskiej-Curie 9, 85-094, Bydgoszcz, Poland.