RT Journal Article SR Electronic T1 The Aftermath of Efficacy JF The Annals of Family Medicine JO Ann Fam Med FD American Academy of Family Physicians SP 3 OP 4 DO 10.1370/afm.959 VO 7 IS 1 A1 Alfred O. Berg YR 2009 UL http://www.annfammed.org/content/7/1/3.abstract AB