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Climatic features and biogeochemical specificity of Russia?s north have a great impact on public health. It is believed that the cumulative effect of these factors is not fully compensated by social or other methods of protection. To identify the features of age-related changes in mineral metabolism in the inhabitants of Russia?s north, we studied concentrations of 25 chemical elements (Al, As, B, Ca, Cd, Co, Cr, Cu, Fe, Hg, I, K, Li, Mg, Mn, Na , Ni, P, Pb, Se, Si, Sn, Sr, V, Zn) in the hair samples taken from th...