PT - JOURNAL ARTICLE ED - , TI - CORRECTION AID - 10.1370/afm.1397 DP - 2012 Mar 01 TA - The Annals of Family Medicine PG - 179--179 VI - 10 IP - 2 4099 - http://www.annfammed.org/content/10/2/179.short 4100 - http://www.annfammed.org/content/10/2/179.full SO - Ann Fam Med2012 Mar 01; 10