title: Illinois Blue Cross and Blue Shield Medical Director Arnold Widen. Interview by Jim Montague.
authors.forename: A
authors.initials: A
authors.lastname: Widen
mesh_terms: D054598:Blue Cross Blue Shield Insurance Plans / Q000458:organization & administration*; D003284:Contract Services / Q000592:standards; D007087:Illinois; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians'; D011243:Preferred Provider Organizations / Q000592:standards*