Article History
Received: 19 January 2021
Accepted: 5 August 2021
First Online: 21 August 2021
Declarations
:
: All authors declare that they have no competing interests.
: The study protocol was reviewed and approval by the Committee on Ethics and the institutional review board of Nihon University Hospital and Osumi Hospital. Because this study was retrospective, the requirement for informed consent was waived.
: Not applicable.