1. Advisory Board 2013 Beyond the Pledges: Where the States Stand on Medicaid http://www.advisory.com/DailyBriefing/Resources/Primers/MedicaidMap
2. America's Health Insurance Plans 2005 Innovations in Medicaid Managed Care: Health Plan Programs to Improve the Health and Well-Being of Medicaid Beneficiaries http://www.ahip.org/Innovations-in-Medicaid-Managed-Care-Report/
3. Revisiting the Behavioral Model and Access to Medical Care? Does It Matter?;Andersen;Journal of Health and Social Behavior,1995
4. Risk-Adjusted Payment and Performance Assessment for Primary Care;Ash;Medical Care,2012
5. Finding Future High-Cost Cases: Comparing Prior Cost versus Diagnosis-Based Methods;Ash;Health Services Research,2001