title: On endogenous and exogenous calcium content of hair samples used in XRF and PIXE measurements.
mesh_terms: D002118:Calcium / Q000032:analysis*; D005260:Female; D006197:Hair / Q000032:analysis*; D006801:Humans; D008297:Male; D013048:Specimen Handling / Q000379:methods; D013052:Spectrometry, X-Ray Emission
chemical_list: D002118:Calcium