IMS to support Medicare lawsuit.
D011307:Drug Prescriptions / Q000191:economics*; D006801:Humans; D007484:Iowa; D008329:Managed Care Programs / Q000331:legislation & jurisprudence; D006278:Medicare / Q000331:legislation & jurisprudence*; D008910:Minnesota; D011157:Population Dynamics; D012955:Societies, Medical; D014481:United States