Plasma 25-hydroxyvitamin D and risk of breast cancer in the Nurses' Health Study II, Breast Cancer Res 13: R50
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Serum vitamin D and breast density in breast cancer survivors., Cancer Epidemiol Biomarkers Prev 19: 412-7
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Serum 25-hydroxyvitamin D concentrations and postmenopausal breast cancer risk: a nested case control study in the Cancer Prevention Study-II Nutrition Cohort., Breast Cancer Res 11: R64
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Vitamin D insufficiency in a multiethnic cohort of breast cancer survivors., Am J Clin Nutr 88: 133-9
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Plasma 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D and risk of breast cancer, Cancer Epidemiol Biomarkers Prev 14: 1991-7
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