1. World Health Day 2012, are you ready? What you need to know about ageing;World Health Organization,2012
2. Frailty and the geriatrician;Rockwood;Age and Ageing,2004
3. Analysis of medicare spending by age for beneficiaries in traditional medicare, Henry Kaiser family foundation;The Rising Cost of Living Longer,2015
4. Frailty Syndrome: Implications and challenges for healthcare policy;Kojima;Risk Management and Healthcare Policy,2019
5. Frailty in elderly people;Clegg;Lancet (London, England),2013