title: [Supplementary yttrium filtration in x-ray diagnosis].
mesh_terms: D003300:Copper; D005069:Evaluation Studies as Topic; D005374:Filtration / Q000295:instrumentation; D008961:Models, Structural; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000295:instrumentation; D011859:Radiography / Q000295:instrumentation*; D015019:Yttrium
chemical_list: D015019:Yttrium; D003300:Copper
vernacular_title: Untersuchung der Yttrium-Zusatzfilterung in der Röntgendiagnostik.