Received: 6 October 2020
Revised: 3 January 2021
Accepted: 4 January 2021
First Online: 9 January 2021
Ethics approval and consent to participate
: Our study was approved by the Ethics Committee of Nagoya University Hospital (Approval number: 2020-0108). Because of the retrospective nature of this study, the requirement for informed consent was waived.
: Not applicable.
: All authors did not receive financial aid for this work and declare no conflicts of interest.