Ichita, Chikamasa http://orcid.org/0000-0001-9210-7371
Sasaki, Akiko
Sumida, Chihiro
Kimura, Karen
Nishino, Takashi
Tasaki, Junichi
Masuda, Sakue
Koizumi, Kazuya
Kawachi, Jun
Kako, Makoto
Article History
Received: 25 September 2020
Accepted: 14 January 2021
First Online: 1 February 2021
Ethics approval and consent to participate
: The Institutional Review Board Ethics Committee of the Tokushukai Medical Group approved this study and waived the requirement for informed consent; instead, patients were allowed to opt out of the study.
: Not applicable.
: The authors declare no conflicts of interest.