1. Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
2. Linyi Center for Disease Control and Prevention, Linyi, Shandong 276000, China
3. Department of Environmetrics and Biometrics. Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
4. Hirosaki University, Hirosaki, Aomori 036-8564, Japan
5. Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China
6. Department of Environmental Health, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
7. Kagoshima University, Sakuragaoka 8-35-1, Kagoshima 890-8520, Japan