title: Key PBM functional areas require radical transformation.
authors.forename: Warren K
authors.initials: WK
authors.lastname: Williams
mesh_terms: D006264:Health Benefit Plans, Employee / Q000191:economics / Q000458:organization & administration*; D007356:Insurance, Pharmaceutical Services / Q000191:economics / Q000639:trends*; D009936:Organizational Innovation; D014481:United States