Funding for this research was provided by:
Naval Medical Research Center—Asia (SC-2016-SABER-003-002, SC-2017-SABER-010-001)
Received: 5 April 2020
Accepted: 27 July 2020
First Online: 12 August 2020
Ethics approval and consent to participate
: The study was conducted in accordance with the ethical standards of the Helsinki Declaration and received a scientific review by and ethical approval from the Malaysian Ministry of Health’s Medical Research and Ethics Committee, the Duke University Health System Institutional Review Board, the Duke-NUS Medical School Ethical Review Board, and the Naval Medical Research Center-Asia Human Research Protection Program.
: Not applicable.
: The authors declare no conflict of interest.