1. Unit of Community Medicine, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia (National Defence University of Malaysia), Kuala Lumpur, Malaysia
2. Unit of Pharmacology, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia (National Defence University of Malaysia), Kuala Lumpur, Malaysia
3. Department of Research, Karnavati Scientific Research Center, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India