Received: 12 March 2019
Accepted: 24 June 2019
First Online: 8 July 2019
Ethics approval and consent to participate
: The study was carried out after obtaining the approval from the Medical Research & Ethics Committee (MREC), Ministry of Health Malaysia (MOH). Study approval number: NMRR-15-1810-28,375(IIR).The need to obtain consent from study participants was waived as there is no direct interaction with the study participants in accordance with the Medical Research & Ethics Committee (MREC), Ministry of Health Malaysia (MOH) regulations.
: The authors declare that there is no conflict of interest.