Increased in carbon isotope ratios of Brazilian fingernails are

Increased in carbon isotope ratios of Brazilian fingernails are correlated with increased in socioeconomic status

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Increased in carbon isotope ratios of Brazilian fingernails are correlated with increased in socioeconomic status

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Global spatial distributions of nitrogen and carbon stable isotope ratios of modern human hair - Hülsemann - 2015 - Rapid Communications in Mass Spectrometry - Wiley Online Library