Letter to the Editor.
Department of Epidemiology and Preventive Medicine, Ehime University Graduate School of Medicine, Ehime, 791-0295, Japan. miyake.yoshihiro.ls@ehime-u.ac.jp.|Epidemiology and Medical Statistics Unit, Translational Research Center, Ehime University Hospital, Ehime, Japan. miyake.yoshihiro.ls@ehime-u.ac.jp.
Yoshihiro
Y
Miyake
Department of Epidemiology and Preventive Medicine, Ehime University Graduate School of Medicine, Ehime, 791-0295, Japan.|Epidemiology and Medical Statistics Unit, Translational Research Center, Ehime University Hospital, Ehime, Japan.
Keiko
K
Tanaka
Department of Health Promotion, National Institute of Public Health, Saitama, Japan.
Hitomi
H
Okubo
Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, Tokyo, Japan.
Satoshi
S
Sasaki
Department of Epidemiology and Preventive Medicine, Ehime University Graduate School of Medicine, Ehime, 791-0295, Japan.|Epidemiology and Medical Statistics Unit, Translational Research Center, Ehime University Hospital, Ehime, Japan.
Shinya
S
Furukawa
Health Tourism Research Fields, Graduate School of Tourism Sciences, University of the Ryukyus, Okinawa, Japan.
Masashi
M
Arakawa