1. Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev , 8 Mira Str., Saint-Petersburg, 197101 , Russia
2. Medical Radiation Physics , Department of Translational Medicine, , SE-205 02 Malmö , Sweden
3. Lund University , Department of Translational Medicine, , SE-205 02 Malmö , Sweden
4. Institute of Radiobiology of the National Academy of Sciences of Belarus , 4 Fedyuninskogo Str., Gomel , Belarus