1. Department of Medicine, University Putra Malaysia, Serdang, Malaysia
2. Malaysian Research Institute on Ageing (Myageing), University Putra Malaysia, Seri Kembangan, Malaysia
3. Division of Geriatric Medicine, Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia
4. Department of Medical Sciences, School of Healthcare and Medical Sciences, Sunway University, Subang Jaya, Malaysia
5. Department of Healthcare of Older People, Nottingham University Hospital NHS Trust, Nottingham, UK
6. Division of Medical Sciences and Graduate Entry Medicine, University of Nottingham, Nottingham, United Kingdom of Great Britain and Northern Ireland
7. NIHR Applied Research Collaboration-East Midlands, Nottingham, UK