1 School of Medicine, International Medical University, Bukit Jalil 57000, Kuala Lumpur, Malaysia.
2 School of Medicine, International Medical University, Bukit Jalil 57000, Kuala Lumpur, Malaysia;School of Pharmacy, University of Nottingham Malaysia, Semenyih 43500, Selangor, Malaysia.
3 Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang 43000, Selangor, Malaysia.
4 Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 169857 Singapore.