Effect of calcium and vitamin D supplementation on blood pressure: The women's health initiative randomized trial

Karen L. Margolis^*, Roberta M. Ray, Linda Van Horn, Jo Ann E. Manson, Matthew A. Allison, Henry R. Black, Shirley A.A. Beresford, Stephanie A. Connelly, J. David Curb, Richard H. Grimm, Theodore A. Kotchen, Lewis H. Kuller, Sylvia Wassertheil-Smoller, Cynthia A. Thomson, James C. Torner