Ishii, Kaori
Shibata, Ai
Koohsari, Mohammad Javad
Oka, Koichiro
Article History
Received: 7 February 2022
Accepted: 17 November 2022
First Online: 28 November 2022
Declarations
:
: All children, mother, and father signed an informed consent form before answering the questionnaire. The Ethics Committee of Waseda University, Japan, approved the study prior to its commencement (2017–245). The present study was conducted in accordance with the principles of the 2013 Declaration of Helsinki.
: Informed consent was obtained from all the participants for publish the data in open access journal.
: The authors declare that they have no competing interests.