1. Department of Genetics, Microbiology and Toxicology, Stockholm University, Stockholm, Sweden
2. Laboratory of Molecular Genetics, Cancer Research Institute, Bratislava, Slovak Republic
3. Occupational and Environmental Health, Stockholm County Council, Stockholm, Sweden
4. Department of Public Health Sciences, Division of Occupational Medicine, Karolinska Institutet, Stockholm, Sweden
5. MAX-lab, Lund University, Lund, Sweden
6. Department of Medical Radiation Physics, Lund University Hospital, Lund, Sweden
7. Laboratory of Radiobiology, General Physics Institute, Russian Academy of Science, Moscow, Russia