1. Centers for Medicare and Medicaid Services. Chronic Conditions among Medicare Beneficiaries, Chartbook. 2012 ed. Baltimore, MD: Centers for Medicare and Medicaid Services, 2012.
2. Epidemiology of multimorbidity and implications for health care, research, and medical education: a cross-sectional study;Barnett;Lancet,2012
3. Refining the measurement of the economic burden of chronic diseases in Canada;Rapoport;Chronic Dis Can,2004
4. Co-morbidity analysis: a strategy for understanding mortality, disability and use of health care facilities of older people;Cornoni-Huntley;Int J Epidemiol,1991
5. Association of comorbidity with disability in older women: the Women's Health and Aging Study;Fried;J Clin Epidemiol,1999