1 Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan; Junpukai Foundation, Okayama, Okayama, Japan. Electronic address: norito@m.u-tokyo.ac.jp.
2 National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan. Electronic address: kim@ncnp.go.jp.
3 Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Tohoku, Japan. Electronic address: msaitop@med.tohoku.ac.jp.
4 Aichi Prefectural Mental Health and Welfare Center, Nagoya, Aichi, Japan. Electronic address: sou_fujishiro@pref.aichi.lg.jp.