1. Department of Pediatrics, Oncology, Hematology, and Diabetology, Medical University of Lodz, Lodz, Poland
2. Laboratory for Microarray Analysis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
3. Faculty of Biology, University of Warsaw, Warsaw, Poland Laboratory for Microarray Analysis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
4. Department of Pediatric Radiology, University Hospital No 4, Lodz, Poland
5. Department of Pediatrics, Hematology and Oncology, Medical University of Warsaw, Warsaw, Poland