title: Medicare issues.
mesh_terms: D006801:Humans; D007252:Influenza Vaccines / Q000191:economics*; D007251:Influenza, Human / Q000517:prevention & control*; D008396:Maryland; D016345:Medicare Part B / Q000191:economics*; D012051:Reimbursement Mechanisms; D014481:United States
chemical_list: D007252:Influenza Vaccines