1. Department of Pathological Anatomy, Medical Faculty, Masaryk University and St. Anne's University Hospital, Brno, Czech Republic
2. International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
3. Department of Pediatric Oncology, Medical Faculty, Masaryk University and University Hospital Brno, Brno, Czech Republic
4. Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic