1. American Hospital Association 2013 Chartbook: Trends Affecting Hospitals and Health Systems; Chapter 4: Trends in Hospital Financing http://www.aha.org/research/reports/tw/chartbook/ch4.shtml Washington, DC AHA
2. Postdischarge Environmental and Socioeconomic Factors and the Likelihood of Early Hospital Readmission among Community-Dwelling Medicare Beneficiaries;Arbaje;Gerontologist,2008
3. Loss of Independence in Activities of Daily Living in Older Adults Hospitalized with Medical Illnesses: Increased Vulnerability with Age;Covinsky;Journal of the American Geriatrics Society,2003