The implications of a Medicare prescription drug benefit.
D000368:Aged; D003625:Data Collection; D016527:Drug Costs / Q000639:trends; D011307:Drug Prescriptions / Q000191:economics* / Q000706:statistics & numerical data; D006801:Humans; D007356:Insurance, Pharmaceutical Services / Q000706:statistics & numerical data*; D006278:Medicare / Q000191:economics* / Q000706:statistics & numerical data; D014481:United States