Article History
Received: 27 July 2020
Accepted: 17 February 2021
First Online: 25 February 2021
Ethics approval and consent to participate
: The study was approved by the Medical Research and Ethics Committee, Ministry of Health Malaysia, with the reference number NMRR-14-1203-23156 (IIR). All respondents provided their written consent before participating in the survey. The privacy and confidentiality of the respondents were maintained throughout the study.
: Not applicable.
: The authors declare that they have no conflict of interest.