Funding for this research was provided by:
Ministry of Education (LRGS 1/2018/UM/01/1/3.)
Received: 6 May 2021
Accepted: 21 October 2021
First Online: 29 October 2021
: This study was approved by Medical Research and Ethics Committee, Malaysia (NMRR-19-962-47606).
: Not applicable.
: The authors declare that they have no competing interests.