title: Pharmacoeconomics under defined contributions and tiered formularies.
authors.forename: A
authors.initials: A
authors.lastname: Lyles
mesh_terms: D016527:Drug Costs / Q000639:trends*; D011307:Drug Prescriptions / Q000191:economics*; D017850:Economics, Pharmaceutical / Q000639:trends*; D006264:Health Benefit Plans, Employee / Q000191:economics*; D006801:Humans