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Chlorinated hydrocarbon levels in human serum: Effects of fasting and feeding
Twenty healthy adult humans had serum samples drawn on four occasions within a 24-hr period: after a 12 hr overnight fast, 4–5 hr after a high fat breakfast, at midafternoon, and the next morningExpand
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Variability and Predictors of Urinary Bisphenol A Concentrations during Pregnancy
Background Prenatal bisphenol A (BPA) exposure may be associated with developmental toxicity, but few studies have examined the variability and predictors of urinary BPA concentrations duringExpand
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Exposure of the US population to environmental tobacco smoke: the Third National Health and Nutrition Examination Survey, 1988 to 1991.
OBJECTIVE To estimate the extent of exposure of the US population to environmental tobacco smoke and the contribution of the home and workplace environment to environmental tobacco smoke exposure. Expand
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Optimal serum cotinine levels for distinguishing cigarette smokers and nonsmokers within different racial/ethnic groups in the United States between 1999 and 2004.
Cotinine, a metabolite of nicotine, is widely used to distinguish smokers from nonsmokers in epidemiologic studies and smoking-cessation clinical trials. As the magnitude of secondhand smoke exposureExpand
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Calculation of serum "total lipid" concentrations for the adjustment of persistent organohalogen toxicant measurements in human samples.
Persistent organohalogen toxicants such as 2,3,7,8-tetrachlorodibenzo-p-dioxin or polychlorinated biphenyls measured in human serum are often expressed on a lipid weight basis, most commonly byExpand
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Households contaminated by environmental tobacco smoke: sources of infant exposures
Objectives: To examine (1) whether dust and surfaces in households of smokers are contaminated with environmental tobacco smoke (ETS); (2) whether smoking parents can protect their infants by smokingExpand
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Serum fatty acids and the risk of coronary heart disease.
To examine the relation between serum fatty acids and coronary heart disease (CHD), the authors conducted a nested case-control study of 94 men with incident CHD and 94 men without incident CHD whoExpand
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Assessing secondhand smoke using biological markers
Secondhand smoke exposure (SHSe) is a known cause of many adverse health effects in adults and children. Increasingly, SHSe assessment is an element of tobacco control research and implementationExpand
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Estimates of nondisclosure of cigarette smoking among pregnant and nonpregnant women of reproductive age in the United States.
Although clinic-based studies have used biochemical validation to estimate the percentage of pregnant women who deny smoking but are actually smokers, a population-based estimate of nondisclosure ofExpand
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The estimation of total serum lipids by a completely enzymatic 'summation' method.
Expressing serum organic toxicant concentrations per weight of total lipid rather than by volume of serum is often advantageous, but it requires a reliable and convenient method for determining theExpand
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