Inui, Takahiro http://orcid.org/0000-0003-4733-5281
Inokuchi, Koichi
Watanabe, Yoshinobu
Matsui, Kentaro
Nakayama, Yuhei
Ishii, Keisuke
Suzuki, Takashi
Kurozumi, Taketo
Kawano, Hirotaka
Article History
Received: 27 September 2019
Accepted: 23 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: The study protocol was reviewed and approved by the Committee on Ethics and the institutional review board of Teikyo University School of Medicine and Saitama Medical Center. Because this study was retrospective, the requirement for informed consent was not deemed necessary.
: Not applicable.
: All authors declare that they have no competing interests.