Document is current
Any future updates will be listed below
-
Authors
-
Funding
Funding for this research was provided by:
the japan society for the promotion of science (JSPS KAKENHI Grant Number 17H01973)
- License Information
-
More Information
Article History
Received: 8 July 2021
Accepted: 27 September 2021
First Online: 28 October 2021
Declarations
:
: All procedures involving study participants were approved by the Ethics Committee of the Faculty of Medicine, Toho University (approval of revised version: no. A19003_A17043 on Apr. 17, 2019; first approval: no. A17043 on Sep, 6, 2017). Written informed consent for the children was obtained from their guardians. Regarding the guardians themselves, completion and return of the questionnaires were not mandatory, and those who did so were deemed to have consented to participation.
: Not applicable.
: The authors declare that they have no competing interests.
