Funding for this research was provided by:
Japan Society for the Promotion of Science London (25461566)
Kansai Medical University (Kansai Medical University (KMU) Research Consortium)
Received: 9 July 2020
Accepted: 26 November 2020
First Online: 18 January 2021
Ethics approval and consent to participate
: The research was approved by the Ethics Committee of Kansai Medical University (No. 1100).Written informed consent was obtained from the parents of all participants.
: Written informed consent was obtained from the parents of all participants.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.