Health Maintenance Organizations and State Medicaid contracts.
D005380:Financing, Government; D006279:Health Maintenance Organizations / Q000191:economics / Q000331:legislation & jurisprudence / Q000458:organization & administration*; D008484:Medicaid / Q000331:legislation & jurisprudence*; D006278:Medicare / Q000331:legislation & jurisprudence*; D014481:United States; D014483:United States Dept. of Health and Human Services