1. Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
2. The Republican Research Center for Radiation Medicine and Human Ecology, Gomel, Belarus
3. Department of Statistics, Radiation Effects Research Foundation, Hiroshima, Japan
4. The Thyroid Center, Columbia University, New York, New York, USA
5. Department of Anthropoecology and Epidemiology, International Sakharov Environmental University, Minsk, Belarus
6. Belarusian Medical Academy of Post-Graduate Education, Minsk, Belarus
7. Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, USA