title: Hopping mad. Medicare HMOs' restrictions on drug coverage prompt high enrollee turnover.
authors.forename: L B
authors.initials: LB
authors.lastname: Benko
mesh_terms: D000368:Aged; D005382:Financing, Personal; D006279:Health Maintenance Organizations / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D019458:Insurance Coverage; D007356:Insurance, Pharmaceutical Services / Q000191:economics*; D020398:Medicare Part C / Q000331:legislation & jurisprudence / Q000706:statistics & numerical data*; D016134:Organizational Policy; D011907:Rate Setting and Review; D014481:United States