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Breast Cancer Risk and Calcium and Vitamin D Intake
Observational studies have shown an association between higher calcium and vitamin D intake and reduced breast cancer risk, but no randomized trial has tested this. Chlebowski et al. (p. 1581) compared the incidence of invasive breast cancer among 36,282 postmenopausal women who were randomly assigned to take 1,000 mg of calcium with 400 IU of vitamin D3 or placebo as part of the Women's Health Initiative. Invasive cancer incidence was similar in both groups. The authors conclude that these findings do not support a relationship between vitamin D intake and decreased breast cancer risk.
In an
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Seven-in-Absentia Homolog 2 and Lung Cancer
Lysophosphatidic Acid Signaling in Ovarian Cancer
Breast Cancer in Younger Women
Squamous Cell Carcinomas in Fanconi Anemia Patients