[1
]Centre for Epidemiology and Evidence-Based Practice, Department of Social and Preventive
Medicine, Faculty of Medicine, University of Malaya , Kuala Lumpur, Malaysia
[2
]Department of Pharmacology, Faculty of Medicine, University of Malaya , Kuala Lumpur,
Malaysia
[3
]Tropical Infectious Diseases Research and Educational Centre (TIDREC), University
of Malaya , Kuala Lumpur, Malaysia
[4
]Department of Medical Microbiology, Faculty of Medicine, University of Malaya , Kuala
Lumpur, Malaysia