1 Health Support Center, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Yokohama, Kanagawa, 226-8503, Japan. Electronic address: marutani.t.aa@m.titech.ac.jp.
2 University Health Center, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki, 310-8512, Japan.
3 Department of Disaster and Community Psychiatry, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba City, Ibaraki, 305-8575, Japan.