PT - JOURNAL ARTICLE AU - John Adam Robbins TI - Transition to osteoporosis for 10% of women takes 17 years for those with normal bone density, 5 years for those with moderate osteopenia: implications for the frequency of bone density testing AID - 10.1136/ebmed-2012-100636 DP - 2013 Feb 01 TA - Evidence Based Medicine PG - e7--e7 VI - 18 IP - 1 4099 - http://ebm.bmj.com/content/18/1/e7.short 4100 - http://ebm.bmj.com/content/18/1/e7.full SO - Evid Based Med2013 Feb 01; 18