Vitamin D With or Without Calcium Supplementation for Prevention of Cancer and Fractures: An Updated Meta-analysis for the U.S. Preventive Services Task Force.
Chung, Mei PhD, MPH; Lee, Jounghee PhD; Terasawa, Teruhiko MD, PhD; Lau, Joseph MD; Trikalinos, Thomas A. MD, PhD
Annals of Internal Medicine.
155(12):827-838, December 20, 2011.
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