Funding for this research was provided by:
Ministry of Health, Malaysia (NMRR-13-308-14792)
Received: 12 March 2020
Accepted: 30 May 2020
First Online: 19 June 2020
Ethics approval and consent to participate
: See “InternalRef removed” section.
: We would like to thank the Director General of Health Malaysia for permission to publish this paper.
: The author declares that they have no competing interests.