Kunihiro, Yoshie
Tanaka, Nobuyuki
Kawano, Reo
Yujiri, Toshiaki
Kubo, Makoto
Ueda, Kazuhiro
Gondo, Toshikazu
Kobayashi, Taiga
Matsumoto, Tsuneo
Article History
Received: 9 October 2018
Revised: 28 March 2019
Accepted: 10 April 2019
First Online: 6 May 2019
Compliance with ethical standards
:
: The scientific guarantor of this publication is Nobuyuki Tanaka.
: The authors declare that they have no conflict of interest.
: One of the authors, Reo Kawano, has significant statistical expertise and provided statistical advice for this manuscript.
: Written informed consent was waived by the Institutional Review Board because this study was a retrospective study.
: Institutional Review Board approval was obtained.
: • retrospective• case–control study• performed at one institution