Shimizu, Nao
Ide, Kazushige
Kondo, Katsunori
Article History
Received: 8 December 2022
Accepted: 28 August 2023
First Online: 20 September 2023
Declarations
:
: A questionnaire was sent via mail with an explanation of the study purpose. Participants read the written explanation and either consented to participate in the study or did not. Ethical approval was obtained from the ethics committees of Chiba University (no. 3442) and Ryotokuji University (no. 22–19). This study was conducted according to the principles of the Declaration of Helsinki. Informed consent was obtained from all participants. The STROBE statement to report this observational study was followed.
: Not applicable.
: The authors declare no competing interests.