Tomasz Urasinski, MD, PhD1*, Klaudia Paczoska, MD1*, Wanda Badowska, PhD2*, Halina Bobrowska, MD3*, Lucja Dakowicz, MD4*, Grzegorz Dobaczewski5*, Elzbieta Latos-Grazynska, MD, PhD6*, Grazyna Karolczyk7, Anna Klukowska, MD, PhD8*, Andrzej Koltan, MD9*, Magdalena Wojdalska, MD10*, Pawel Laguna, MD, PhD8*, Maciej Niedzwiecki, MD11*, Danuta Pietrys12*, Julia Radon-Proskura13*, Monika Radwanska, MD14*, Iwona Ruranska, MD15*, Tomasz Szczepanski, MD, PhD16,17, Dariusz Wasinski, MD18*, Irena Woznica-Karczmarz, MD19* and Tomasz Ociepa, MD, PhD1*
1Department of Pediatrics, Hemato-Oncology and Gastroenterology, Pomeranian Medical University, Szczecin, Poland
2Department of Pediatric Oncology and Hematology, School of Medicine, University of Warmia Mazury in Olsztyn, Olsztyn, POL
3Wielkopolska Child Health Center, Poznań, Poland
4Department of Pediatric Oncology and Hematology, Medical University of Bialystok, Białystok, Poland
5Department of Bone Marrow Transplantation, Pediatric Oncology and Hematology, Wroclaw Medical University, Wrocław, POL
6Department of Bone Marrow Transplantation, Pediatric Oncology and Hematology, Wroclaw Medical University, Wrocław, Poland
7II Department of Pediatrics, Collegium Medicum, Jan Kochanowski University, Kielce, Poland
8Department of Pediatric Oncology, Hematology and Transplantation, Medical University of Warsaw, Warszawa, Poland
9Department of Pediatrics, Hematology and Oncology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, POL
10Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Łódź, Poland
11Department of Pediatrics, Hematology and Oncology, Medical University of Gdansk, Gdansk, Poland
12Department of Pediatric Oncology and Hematology, Collegium Medicum, Jagiellonian University, Kraków, Poland
13Department of Pediatrics, Hematology and Oncology, Medical University of Gdansk, Gdańsk, Poland
14Department of Pediatric Oncology and Hematology, College of Medical Sciences, University of Rzeszow, Rzeszów, Poland
15Department of Pediatrics, Hematology and Oncology, Medical University of Silesia, Katowice, Poland
16Medical University of Silesia, Katowice, Poland
17Department of Pediatrics Hematology and Oncology in Zabrze, Medical University of Silesia, Zabrze, Poland
18Department of Pediatric Hematology and Oncology, Collegium Medicum, University of Zielona Gora, Zielona Góra, Poland
19Department of Transfusion Medicine, Medical University of Lublin, Lublin, Poland