California's Medi-Cal copayment experiment.
D000328:Adult; D000385:Aid to Families with Dependent Children; D002140:California; D002648:Child; D003669:Deductibles and Coinsurance; D004608:Eligibility Determination; D005069:Evaluation Studies as Topic; D005382:Financing, Personal; D006296:Health Services / Q000706:statistics & numerical data; D006801:Humans; D007603:Jurisprudence; D008484:Medicaid; D010593:Pharmaceutical Services / Q000706:statistics & numerical data; D010820:Physicians / Q000706:statistics & numerical data; D011314:Preventive Health Services / Q000706:statistics & numerical data; D012107:Research Design; D012494:Sampling Studies; D012945:Social Values