title: Credentialing--important, but difficult.
authors: F
authors: F
authors: Diamond
mesh_terms: D003406:Credentialing; D006279:Health Maintenance Organizations / Q000592:standards*; D008007:Licensure, Medical; D011243:Preferred Provider Organizations / Q000592:standards*; D011640:Public Policy; D017749:Total Quality Management; D014481:United States