About the Authors

Jun Shigemura

shige@ndmc.ac.jp

Affiliation Department of Psychiatry, National Defense Medical College, Tokorozawa, Saitama, Japan

Takeshi Tanigawa

Affiliation Department of Public Health, Ehime University Graduate School of Medicine, Toon, Ehime, Japan

Daisuke Nishi

Affiliation Department of Mental Health Policy and Evaluation, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan

Yutaka Matsuoka

Affiliations Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan, Department of Psychiatry, National Disaster Medical Center, Tachikawa, Tokyo, Japan

Soichiro Nomura

Affiliation Department of Psychiatry, National Defense Medical College, Tokorozawa, Saitama, Japan

Aihide Yoshino

Affiliation Department of Psychiatry, National Defense Medical College, Tokorozawa, Saitama, Japan

Competing Interests

JS, SN, and AY provided mental health assistance to TEPCO Fukushima Daiichi and Daini nuclear power plant employees according to official requests from Daini and a Japanese government cabinet order to the Ministry of Defense. TT is a Daini part-time occupational physician. DN and YM report no conflict of interest disclosures. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JS TT SN. Performed the experiments: JS TT. Analyzed the data: JS DN YM. Contributed reagents/materials/analysis tools: TT SN AY. Wrote the paper: JS DN YM.