title: Tumor analysis by particle-induced x-ray emission (PIXE).
mesh_terms: D000818:Animals; D001932:Brain Neoplasms / Q000032:analysis*; D006801:Humans; D051379:Mice; D009374:Neoplasms, Experimental / Q000032:analysis* / Q000378:metabolism; D013052:Spectrometry, X-Ray Emission; D014131:Trace Elements / Q000032:analysis*; D015019:Yttrium / Q000032:analysis / Q000378:metabolism
chemical_list: D014131:Trace Elements; D015019:Yttrium