Article History
Received: 23 June 2021
Accepted: 1 September 2021
First Online: 15 September 2021
Declarations
:
: The authors Takahisa Mori, Kazuhiro Yoshioka and Yuhei Tanno have no relationships with any companies whose products or services may be related to the article's subject matter.
: All procedures were performed in accordance with the ethical standards of the institution and the 1964 Helsinki Declaration. The Tokushukai Group Ethics Committee approved our retrospective study (TGE01402-024).
: Written informed consent for participation was not required. Study participant enrollment was based on an opt-out model, which the ethical committee permitted.
: Not applicable.