1. Health Care Financing Administration: Medicaid Managed Care Enrollment Report: Medical Statistics and Data. www.hcfa.gov/medicaid/omc2000.htm.
2. Quality management by state Medicaid agencies converting to managed care: Plans and current practice;Landon;JAMA,1998
3. Medicaid managed care in thirteen states;Holahan;Health Aff,1998
4. Government Accounting Office: Better Control Needs for Health Maintenance Organizations under Medicaid in California. Washington, DC: 1974.
5. Schulte F, Bergal J: Profits from pain. Fort Lauderdale Sun-Sentinel, Dec 11–15, 1994.