title: Test limits meet resistance: CMS seeks to restrict new PET scans for Alzheimer's.
authors.forename: Jaimy
authors.initials: J
authors.lastname: Lee
mesh_terms: D000544:Alzheimer Disease / Q000000981:diagnostic imaging*; D014487:Centers for Medicare and Medicaid Services, U.S.; D006801:Humans; D019458:Insurance Coverage; D049268:Positron-Emission Tomography / Q000706:statistics & numerical data*; D014481:United States