1. Center for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
2. Program of Biomedical Science, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
3. Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
4. Faculty Health Sciences, University of Sydney, Lidcombe, NSW, Australia
5. IHEAL Medical Centre, Kuala Lumpur, Malaysia
6. Perdana University School of Occupational Therapy, Serdang, Malaysia
7. Perak Community Specialist Hospital, Ipoh, Malaysia
8. Department of General Medicine, Serdang Hospital, Kajang, Malaysia
9. Department of Medicine, Selayang Hospital, Batu Caves, Malaysia