Nagai, Takako
Nagaoka, Masahiro
Tanimoto, Koji
Tomizuka, Yoshiaki
Uei, Hiroshi
Nakanishi, Kazuyoshi
Article History
Received: 2 May 2020
Accepted: 4 August 2020
First Online: 12 August 2020
Ethics approval and consent to participate
: The study protocol was reviewed and approval by the Committee on Ethics and the institutional review board of Nihon University Hospital and Osumi Hospital. Because this study was retrospective, the requirement for informed consent was waived.
: Not applicable.
: All authors declare that they have no competing interests.