Kawahara, Atsushi
Article History
Received: 16 February 2021
Accepted: 21 April 2021
First Online: 8 May 2021
Declarations
:
: This study was approved by the Tokushukai Group Ethics Committee. Tenets of declaration of Helsinki were followed, and written informed consent was obtained from all subjects.
: Not applicable.
: The author declares no competing interests regarding the publication of this paper.