Imanishi, Toshiyuki https://orcid.org/0000-0003-2667-1139
Shimizu, Masaki
Sumiya, Wakako
Kanno, Chika
Kanno, Masayuki
Kanno, Masami
Kawabata, Ken
Article History
Received: 19 March 2022
Revised: 27 July 2022
Accepted: 29 July 2022
First Online: 11 August 2022
Competing interests
: The authors declare no competing interests.
: This study was approved by the Institutional Research Ethics Board of Saitama Children’s Medical Center (approval number: 2021-03-024). Parental consent was not required because of the retrospective nature of this study.