RT Journal Article SR Electronic T1 Chronicity and complexity JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 1655 OP 1658 VO 54 IS 12 A1 Ross E.G. Upshur A1 Shawn Tracy YR 2008 UL http://www.cfp.ca/content/54/12/1655.abstract AB