Received: 22 August 2021
Accepted: 18 May 2022
First Online: 7 June 2022
: This study was conducted in accordance with the Declaration of Helsinki, and the study protocol was reviewed and approved by the Ethics Committees of the Research Ethics Committee of the Faculty of Medicine, University of Oita (Approval number: 2036). Informed consent was omitted and information of this study was disclosed in the form of opt-out on our hospital website. Information regarding the conduct of the research including the objectives was disclosed and the research subjects were provided an opportunity to refuse inclusion in the research.
: Not applicable.
: The authors declare that they have no competing interests.