1. Department of Medical Biochemistry, Charles University, Prague, Czech Republic.
2. Department of Histology and Embryology, Charles University, Prague, Czech Republic.
3. Department of Radiobiology, Faculty of Military Health Sciences, Hradec Kralove, University of Defense, Brno, Czech Republic.
4. Department of Dentistry, Faculty of Medicine in Hradec Kralove, Charles University, Prague, Czech Republic.
5. Department of Oncology and Radiotherapy, Charles University, Prague, Czech Republic.
6. University of South Florida, Department of Neurosurgery, Center for Developmental Research, Palmetto, Florida.