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Objective We examine the association of antioxidants and 15-isoprostane F2t with risk of prostate cancer. Methods We conducted a nested case–control study of serum antioxidant biomarkers (selenium, tocopherols, carotenoids, and retinol) and a urinary oxidation biomarker (15-isoprostane F2t) with risk of prostate cancer within the Multiethnic Cohort. Demographic, dietary, and other exposure information...
Objective Our study assesses the impact of oral contraceptive use on breast carcinoma in-situ (BCIS) risk. Methods We conducted a population based case–control study of incident BCIS among black and white women ages 35–64 years residing in Los Angeles County. Case patients (n = 567) were newly diagnosed with BCIS and control participants (n = 614) were identified by random digit dialing between...
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