Document is current

Article History

Received: 8 July 2021

Accepted: 22 August 2021

First Online: 6 September 2021

Declarations

:

: All procedures were performed in accordance with the ethical standards of the institution and the 1964 Helsinki Declaration. The Tokushukai Group Ethics Committee approved this retrospective study with a waiver for informed consent (TGE01723-024). Study participant enrollment was based on an opt-out model, which the ethical committee permitted.

: Not applicable.

: The authors declare that they have no competing interests.