TY - JOUR T1 - CORRECTION JF - The Annals of Family Medicine JO - Ann Fam Med SP - 503 LP - 503 DO - 10.1370/afm.2168 VL - 15 IS - 6 A2 - , Y1 - 2017/11/01 UR - http://www.annfammed.org/content/15/6/503.abstract ER -