Received: 28 June 2021
Accepted: 5 January 2022
First Online: 13 January 2022
: This study was registered with National Medical Research Register with the ID number: NMRR-19-71-46144 and approved by the Medical Research and Ethics Committee (MREC), Ministry of Health Malaysia (KKM/NIHSEC/P19–311(11)) and Research Ethics Committee of Universiti Kebangsaan Malaysia with reference number: UKM PPI/111/8/JEP-2019-226. All methods were performed in accordance with the relevant guidelines and regulations set by the committee and all participants provided written informed consent to participate in the study prior to data collection.
: Not applicable.
: The authors declare that they have no competing interests.