Medicare to introduce prescription drug plan.
D003362:Cost-Benefit Analysis; D011307:Drug Prescriptions / Q000191:economics*; D006078:Government Programs; D006264:Health Benefit Plans, Employee / Q000191:economics / Q000331:legislation & jurisprudence*; D006801:Humans; D007342:Insurance Benefits; D019458:Insurance Coverage; D007880:Legislation, Drug; D006278:Medicare; D014481:United States; D018634:Veterinarians