About the Authors

Naomi Hayashida

naomin@nagasaki-u.ac.jp

Affiliation Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan

Misa Imaizumi

Affiliation Department of Clinical Studies, Radiation Effects Research Foundation, Nagasaki, Japan

Hiroki Shimura

Affiliation Department of Laboratory Medicine, Fukushima Medical University, Fukushima, Japan

Noriyuki Okubo

Affiliation Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Yasushi Asari

Affiliation Department of Emergency and Disaster Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Takeshi Nigawara

Affiliation Department of Endocrinology and Metabolism, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Sanae Midorikawa

Affiliation Department of Radiation Health Management, Fukushima Medical University, Fukushima, Japan

Kazuhiko Kotani

Affiliation Department of Clinical Laboratory Medicine, Jichi Medical University, Tochigi, Japan

Shigeyuki Nakaji

Affiliation Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan

Akira Otsuru

Affiliation Department of Radiation Health Management, Fukushima Medical University, Fukushima, Japan

Takashi Akamizu

Affiliation The First Department of Medicine, Wakayama Medical University, Wakayama, Japan

Masafumi Kitaoka

Affiliation Division of Endocrinology and Metabolism, Showa General Hospital, Tokyo, Japan

Shinichi Suzuki

Affiliation Department of Thyroid and Endocrinology, Fukushima Medical University, Fukushima, Japan

Nobuyuki Taniguchi

Affiliation Department of Clinical Laboratory Medicine, Jichi Medical University, Tochigi, Japan

Shunichi Yamashita

Affiliations Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan, Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan

Noboru Takamura

Affiliation Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan

for the Investigation Committee for the Proportion of Thyroid Ultrasound Findings

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NH MI HS NO SN MK SS N. Taniguchi SY N. Takamura. Performed the experiments: NH HS NO YA TN SM SN AO TA SS N. Taniguchi N. Takamura. Analyzed the data: MI KK TA. Wrote the paper: NH MI KK N. Taniguchi N. Takamura.