1. Department of Medicine, Clinical School, International Medical University, Jalan Rasah, 70300 Seremban, Malaysia
2. Department of Pharmacy, International Medical University, Plaza Komanwel, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
3. Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia