1Research Center for Social Science and Medicine, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506 Japan
2Department of Neuropsychiatry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655 Japan
3Tokyo Medical Examiner’s Office, 4-21-18 Otsuka, Bunkyo-ku, Tokyo, 112-0012 Japan
4Department of Forensic Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498 Japan
5Department of Epidemiology and Environmental Health, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421 Japan
6Graduate school of Education, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan
7National Research Institute of Police Science, 6-3-1 Kashiwanoha, Kashiwa-shi, Chiba, 277-0882 Japan
8Michinoo Hospital, 1-1 Nijigaoka, Nagasaki-shi, Nagasaki, 852-8055 Japan
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