1. WHO (1994) Assessment of fracture risk and its application to screening for postmenopausal osteoporosis. Report of a WHO Study Group (ref type: report). World Health Organization, Geneva, Technical Report Series 843, 1–129
2. International Osteoporosis Foundation (2003) The facts about osteoporosis and its impact (ref type: report). 1–3. International Osteoporosis Foundation
3. Cummings SR, Melton III LJ (2002) Epidemiology and outcomes of osteoporotic fractures. Lancet 359:1761–1767
4. Law MR, Hackshaw AK (1997) A meta-analysis of cigarette smoking, bone mineral density and risk of hip fracture: recognition of a major effect. BMJ 315:841–846
5. Scottish Intercollegiate Guidelines Network (2003) Management of osteoporosis: a national clinical guideline(ref type: report). 71, 1–45. Scottish Intercollegiate Guidelines Network, Edinburgh