TY - JOUR T1 - CORRECTION JF - The Annals of Family Medicine JO - Ann Fam Med SP - 558 LP - 558 DO - 10.1370/afm/417 VL - 3 IS - 6 A2 - , Y1 - 2005/11/01 UR - http://www.annfammed.org/content/3/6/558.abstract N2 - ER -