PT - JOURNAL ARTICLE AU - Bo Abrahamsen TI - Older women who use bisphosphonate for longer than 5 years may have increased odds of a subtrochanteric or femoral shaft fracture, but absolute risk is low AID - 10.1136/ebm.2011.000013 DP - 2011 Dec 01 TA - Evidence Based Medicine PG - 168--169 VI - 16 IP - 6 4099 - http://ebm.bmj.com/content/16/6/168.short 4100 - http://ebm.bmj.com/content/16/6/168.full SO - Evid Based Med2011 Dec 01; 16