RT Journal Article SR Electronic T1 Threads and Yarns: Weaving the Tapestry of Comorbidity JF The Annals of Family Medicine JO Ann Fam Med FD American Academy of Family Physicians SP 101 OP 103 DO 10.1370/afm.524 VO 4 IS 2 A1 Starfield, Barbara YR 2006 UL http://www.annfammed.org/content/4/2/101.abstract AB