Received: 15 August 2019
Accepted: 27 February 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Medical Research and Ethics Committee, Ministry Of Health Malaysia, and the study was registered under the Malaysian National Medical Research Register (NMRR, website URL: ExternalRef removed) with the research number of NMRR-16-696-39041. Informed consent was obtained from all participants prior to their participation in this study.
: Participants were informed that his or her data would be used anonymously for subsequent analysis, presentation, and publication.
: The authors declare that they have no competing interests.