0 Lu, Y. Genant, H. K. Shepherd, J. Zhao, S. Mathur, A. Fuerst, T. P. Cummings, S. R. 2001 Classification of osteoporosis based on bone mineral densities J Bone Miner Res 16 901-10 11341335 Adult, Aged, Bone Density, Female, Hip Fractures/physiopathology, Human, Osteoporosis/*classification/*physiopathology, Spinal Fractures/physiopathology http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=11341335