Funding for this research was provided by:
Universiti Kebangsaan Malaysia (FF-2018-286)
Received: 10 February 2021
Accepted: 22 February 2021
First Online: 4 March 2021
: This study was approved by the UKM research and ethics committee: FF-2018-286 and the NMRR from MOH Malaysia: NMRR-18-3765-45117.
: Written informed consent was obtained from the parents.
: Patients signed informed consent regarding publishing their data.
: The authors declare no competing interests.