title: X-ray exposure reduction using rare-earth oxysulfide intensifying screens.
mesh_terms: D000042:Absorption; D005682:Gadolinium; D007089:Image Enhancement; D007811:Lanthanum; D013053:Spectrophotometry; D013679:Technology, Radiologic; D014414:Tungsten
chemical_list: D007811:Lanthanum; D005682:Gadolinium; D014414:Tungsten