PT - JOURNAL ARTICLE ED - , TI - CORRECTION AID - 10.1370/afm.1294 DP - 2011 Jul 01 TA - The Annals of Family Medicine PG - 371--371 VI - 9 IP - 4 4099 - http://www.annfammed.org/content/9/4/371.short 4100 - http://www.annfammed.org/content/9/4/371.full SO - Ann Fam Med2011 Jul 01; 9