1. World Health Organization: Assessment of fracture risk and its application to screening for postmenopausal osteoporosis. Geneva: WHO Technical Report Series.WHO 1994.
2. Kanis JA, Johnell O, Oden A, et al.: Risk of hip fracture according to the World Health Organization criteria for osteopenia and osteoporosis. Bone 2000, 27:585–590.
3. National Osteoporosis Foundation: http:/www.nof.org/ osteoporosis. This website is a useful source of information on osteoporosis.
4. Melton LJ: How many women have osteoporosis. J Bone Miner Res 1995, 10:175–177.
5. National Osteoporosis Foundation: Osteoporosis: review of the evidence for prevention, diagnosis and treatment and cost-effectiveness analysis. Status report from the National Osteoporosis Foundation. Osteoporos Int 1998 8(Suppl 4):10.