Sogabe, Masahiro
Okahisa, Toshiya
Fukuya, Akira
Kagemoto, Kaizo
Okada, Yasuyuki
Adachi, Yuka
Kurihara, Takeshi
Nii, Toru
Teramae, Satoshi
Tanaka, Hironori
Tomonari, Tetsu
Okamoto, Koichi
Miyamoto, Hiroshi
Nakasono, Masahiko
Takayama, Tetsuji
Article History
Received: 9 July 2019
Accepted: 13 April 2020
First Online: 21 April 2020
Ethics approval and consent to participate
: Written informed consent was obtained from all subjects. The study protocol was approved by the Ethics Committee in Shikoku Central Hospital of the Mutual Aid Association of Public School teachers and this study was performed in accordance with the Declaration of Helsinki. This trial was registered in the University Hospital Medical Information Network (UMIN) Clinical Trials Registry as UMIN000029637.
: Not applicable.
: The authors declare that they have no competing interests.