Funding for this research was provided by:
Universiti Malaya (RP048B-17HTM)
Article History
Received: 24 January 2019
Accepted: 24 May 2019
First Online: 20 June 2019
Ethics approval and consent to participate
: This study was approved by the Medical Research Ethics Committee of University Malaya Medical Centre prior to the commencement of the study (approval number: MECID No. 20165–2493). Written informed consent was obtained from all participants who agreed to participate.
: The authors declare that they have no competing interests.