1 Department of Radiation Health Management, Fukushima Medical University School of Medicine, Fukushima, Fukushima Prefecture, Japan.
2 Research Division, Medical Governance Research Institute, Tokyo, Japan.
3 Department of Radiation Health Management, Fukushima Medical University School of Medicine, Fukushima, Fukushima Prefecture, Japan; Research Division, Medical Governance Research Institute, Tokyo, Japan. Electronic address: [email protected].