Exposure to phthalates in couples undergoing in vitro fertilization treatment and its association with oxidative stress and DNA damage

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Alternatives for logistic regression in cross-sectional studies: an empirical comparison of models that directly estimate the prevalence ratio

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Urinary Creatinine Concentrations in the U.S. Population: Implications for Urinary Biologic Monitoring Measurements

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Comparison of tests used to distinguish smokers from nonsmokers.

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