Funding for this research was provided by:
Ministry of Higher Education and Scientific Research (UM.C/625/1/HIR/MOHE/ASH/02)
Received: 20 September 2019
Accepted: 10 June 2020
First Online: 24 June 2020
Ethics approval and consent to participate
: This study was approved by the University of Malaya Medical Centre Medical Ethics Committee (Ref: 925.4) and complied with the Helsinki Declaration of 1975, revised in 1983. Written informed consent was obtained from all study participants prior to their inclusion. No administrative permissions were required to access the raw data from MELoR study.
: Not applicable.
: The authors declare no conflict of interest.