Funding for this research was provided by:
Japan Society for the Promotion of Science (19K08248)
Received: 12 January 2020
Accepted: 15 July 2020
First Online: 23 July 2020
Ethics approval and consent to participate
: This study was approved from the local ethics committee at Toyama University (R2019038). Written informed consent was obtained from all individual participants included in this study.
: Parental permission was obtained in writing for use of the de-identified case report.
: The authors declare that they have no competing interests.