Funding for this research was provided by:
UKMMC Fundamental Research Fund (FF-318-2011)
Centre for Research and Instrumentation Management
Received: 2 December 2019
Accepted: 27 July 2020
First Online: 1 August 2020
Ethics approval and consent to participate
: The study was approved by research committees of the respective medical centres (UKM Medical Research and Ethics Committee, Approval Reference FF-318-2011 and UMMC Medical Ethics Committee, Approval Reference 859.11). Informed consent was obtained from those who agreed to participate. For the participants who are < 18 years old, the informed consent was obtained from their parent or legal guardian in addition to the verbal consent obtained from the young person.
: Not applicable.
: The authors declare that they have no competing interests.