Funding for this research was provided by:
Ministry of Education, Malaysia: High Impact Research (UM.C/625/1/HIR/MOE/CHAN/02/02)
Universiti Malaya (MY) Postgraduate Research Fund (PG084-2015A)
Universiti Malaya (MY) Postgraduate Research Fund (PG097-2015A)
Received: 5 November 2017
Accepted: 16 May 2018
First Online: 23 May 2018
Ethics approval and consent to participate
: The study was approved by the University of Malaya Medical Centre (UMMC) Medical Ethics Committee (MEC890.1). Standard, multilingual consent forms permitted by the Medical Ethics Committee were used and written consent was obtained from all study participants. All experiments were performed in accordance with approved guidelines and regulations.
: We have obtained the written consent from participants to publish the data.
: The authors declare that they have no competing interests.
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