Received: 25 November 2021
Accepted: 5 April 2022
First Online: 11 April 2022
: This study was approved by the Ethics Committee of Tokyo Dental College (approval number 783) and the Research Ethics Committee of the University of Tokyo Graduate School of Medicine and School of Medicine (approval number 11764).
: Not applicable.
: Kazuto Koresawa, Satoru Matsunaga, Atsuhiko Hikita, Hajime Okudera, Akira Yamaguchi, Yasutomo Yajima, Shinichi Abe declare that they have no competing interests.