TY - JOUR JF - The Annals of Family Medicine JO - Ann Fam Med SP - 511 LP - 511 DO - 10.1370/afm.1880 VL - 13 IS - 6 A2 - , Y1 - 2015/11/01 UR - http://www.annfammed.org/content/13/6/511.abstract N2 - ER -