Relationships Between Element Contents in Polish Children's and Adolescents' Hair.

Biol Trace Elem Res · 2017 · PMC5610676 · PMID 28283951

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an increasing trendno p-value reported

An increasing trend was found for bioelements (Ca, Mg, Zn) both for girls and boys in all age groups, while for Cu and Fe content, changes are insignificant and even decreasing for teenagers.

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