Tetsuya Ohira1, Hideto Takahashi, Seiji Yasumura, Akira Ohtsuru, Sanae Midorikawa, Satoru Suzuki, Takashi Matsuzuka, Hiroki Shimura, Tetsuo Ishikawa, Akira Sakai, Shunichi Yamashita, Koichi Tanigawa, Hitoshi Ohto, Kenji Kamiya, Shinichi Suzuki. 1. Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan, teoohira@fmu.ac.jp Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, National Institute of Public Health, Saitama, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Public Health, Fukushima Medical University School of Medicine, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Radiation Health Management, Fukushima Medical University School of Medicine, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Radiation Health Management, Fukushima Medical University School of Medicine, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Otorhinolaryngology, Fukushima Medical University School of Medicine, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Laboratory Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Radiation Physics and Chemistry, Fukushima Medical University School of Medicine, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Department of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan, and, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan Department of Thyroid and Endocrinology, Fukushima Medical University School of Medicine, Fukushima, Japan.