Kunogi, Hiroaki http://orcid.org/0000-0001-5482-0096
Yamaguchi, Nanae
Terao, Yasuhisa
Sasai, Keisuke
Article History
Received: 3 November 2020
Accepted: 28 January 2021
First Online: 4 February 2021
Ethical approval and consent to participate
: Prior to treatment, written informed consent was obtained from all patients, who agreed to our use of their clinical data. This retrospective study was approved by the ethics committee of our institution (Approval No. 17-291) which waived the need for re-informed consent.
: Not applicable.
: The authors have no conflicts of interest to report. The authors alone are responsible for the content of this manuscript.