PT - JOURNAL ARTICLE ED - , TI - CORRECTION AID - 10.1370/afm.662 DP - 2006 Nov 01 TA - The Annals of Family Medicine PG - 563--563 VI - 4 IP - 6 4099 - http://www.annfammed.org/content/4/6/563.short 4100 - http://www.annfammed.org/content/4/6/563.full SO - Ann Fam Med2006 Nov 01; 4