title: Geographic variation in Medicare prevailing charges for physician services.
authors.forename: E K
authors.initials: EK
authors.lastname: Cromley
authors.forename: G W
authors.initials: GW
authors.lastname: Shannon
mesh_terms: D005249:Fees and Charges; D005843:Geography; D006801:Humans; D006278:Medicare / Q000191:economics*; D015442:Medicare Assignment / Q000191:economics*; D012423:Rural Health; D014481:United States; D014504:Urban Health