K. E Ensrud, L. Y Lui, B. C Taylor, J. T Schousboe, M. G Donaldson, H. A Fink, J. A Cauley, T. A Hillier, W. S Browner, S. R Cummings and for the Study of Osteoporotic Fractures Research Group
Archives of Internal Medicine 169 ( 22 ): 2087 - 2094 , 2009