Kawai, Norikazu
Kawaguchi, Takeshi
Yasukawa, Motoaki
Tojo, Takashi
Sawabata, Noriyoshi
Taniguchi, Shigeki
Article History
Received: 31 July 2020
Accepted: 14 October 2020
First Online: 23 January 2021
Compliance with ethical standards
:
: None declared.
: Because this was a retrospective study, the need to obtain written informed consent from each patient was waived.