1. Insurers Push Plans That Limit Choice of Doctor;Abelson;The New York Times,2010
2. Agency for Healthcare Research and Quality 2009 CAHPS Clinician and Group Survey, Adult Primary Care Questionnaire 1.0, Updated October 8, 2009 https://www.cahps.ahrq.gov/cahpskit/CG/CGChooseQx4P.asp
3. America's Health Insurance Plans 2009 The Value of Provider Networks and the Role of Out-of-network Charges in Rising Health Care Costs: A Survey of Charges Billed by Out-Of-Network Physicians http://www.ahip.org/Value-of-Provider-Networks-Report/
4. Insurance Trade-Off: Reducing Premiums by Eliminating Expensive Doctors, Hospitals;Andrews;Kaiser Health News,2011a
5. Insurers Sometimes Reject Neonatal Intensive Care Costs;Andrews;Kaiser Health News,2011b