title: A refinement to a radiation dose reduction modification for an EMI CT 5005 whole body scanner filtration system.
mesh_terms: D003300:Copper; D005374:Filtration / Q000379:methods; D006801:Humans; D011829:Radiation Dosage; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003300:Copper