Kosugi, Yasuo
Kawamoto, Terufumi
Oshima, Masaki
Fujimaki, Mitsuhisa
Ohba, Shinichi
Matsumoto, Fumihiko
Shikama, Naoto
Sasai, Keisuke
Article History
Received: 9 August 2020
Accepted: 6 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: This retrospective analysis was approved by the ethics committee of Juntendo University (approval number: 19-173). Informed consent was obtained from all individual participants included in the study.
: Informed consent was obtained from all individual participants included in the study.
: Y Kosugi, T Kawamoto, M Oshima, M Fujimaki, S Ohba, F Matsumoto, N Shikama, and K Sasai declare that they have no competing interests.