PT - JOURNAL ARTICLE ED - , TI - An algorithm comprising 7 baseline variables predicted the 2 year work disability status in non-specific back pain AID - 10.1136/ebm.10.6.187 DP - 2005 Dec 01 TA - Evidence Based Medicine PG - 187--187 VI - 10 IP - 6 4099 - http://ebm.bmj.com/content/10/6/187.short 4100 - http://ebm.bmj.com/content/10/6/187.full SO - Evid Based Med2005 Dec 01; 10