Contribution of Authors :
Prof Dr Nur Azurah is the main person who conceived the topic of this
project. All authors were involved in planning, executing and
supervising the work. Dr Ana Vetriana and Dr Leekmei processed the
experimental data and performed the analysis. Dr Leekmei drafted the
manuscript which was overlooked by Prof Dr Nur Azurah and Dr Ana
Vetriana whom critically appraised the manuscript and corrected any
mistakes and thus improved on shortfalls.
All authors aided in interpreting the results and worked on the
manuscript. All authors discussed the results and commented on the
manuscript.
Ethics approval : This study is approved by the Secretariat for
Medical Research & Innovation (SPPI), National University of Malaysia
(FF-2018-020). The letter of approval (UKMFPR.4/244/FF-2018-020) was
issued on 16 January 2018.
Funding : No external funding was received. All the costs
incurred was bear by the main author.