title: What used to be easy is hard.
authors: S J
authors: SJ
authors: Hage
mesh_terms: D000329:Advertising / Q000639:trends*; D011307:Drug Prescriptions; D005569:Formularies as Topic; D017408:Guidelines as Topic; D008329:Managed Care Programs; D008389:Marketing of Health Services / Q000379:methods*; D008402:Mass Media; D014481:United States