Article History
Received: 21 December 2020
Revised: 26 January 2021
Accepted: 27 January 2021
First Online: 17 March 2021
Declarations
:
: Ethical approval by University of Malaya Research Ethics Committee (UMREC) and the Medical Research and Ethics Committee (MREC), Ministry of Health Malaysia.
: The authors declare that they have no competing interests.