1. Laboratory of Radiobiology, Cancer Research Institute, Biomedical Research Centre SAS, Slovak Academy of Sciences, Bratislava, Slovakia;
2. Molecular Radiation Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Australia;
3. Institute of Physiology, Faculty of Medicine Comenius University, Bratislava, Slovakia;
4. Laboratory of Radiobiology, General Physics Institute, Russian Academy of Science, Moscow, Russia