Taming the Medicare monster.
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D000368:Aged; D004608:Eligibility Determination; D004632:Emergency Medical Services / Q000191:economics*; D005249:Fees and Charges / Q000592:standards*; D006801:Humans; D015442:Medicare Assignment; D016345:Medicare Part B / Q000191:economics / Q000592:standards*; D012051:Reimbursement Mechanisms; D014481:United States