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Smoking Eliminates the Protective Effect of Oral Estrogens on the Risk for Hip Fracture among Women
Douglas P. Kiel, MD, MPH; John A. Baron, MD, MS, MSc; Jennifer J. Anderson, PhD; Marian T. Hannan, MPH; David T. Felson, MD, MPH
Annals of Internal Medicine 1992;116:716-721.
doi:10.7326/0003-4819-116-9-716
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