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. 2023 Feb 15;16:1133218. doi: 10.3389/fnmol.2023.1133218

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Copyright © 2023 Miller, Day, Behl, Stromback, Delgado, Jannetto, Wieser, Mehta and Pandey.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Scatterplots comparing the total element concentration of Cu and Zn (mcg/mL) and the isotopic composition δ⁶⁵Cu (‰) and δ⁶⁶Zn (‰) of bulk serum in boys.