1. Department of Community Medicine, Public Health, Faculty of Medicine (FOM), AIMST University, Bedong, Kedah, Malaysia
2. Department of Physiology, Faculty of Medicine, Quest International University Perak (QIUP), Ipoh, Perak Darul Ridzuan, Malaysia
3. Department of Medicine, Faculty of Medicine, Quest International University Perak (QIUP), Ipoh, Perak Darul Ridzuan, Malaysia