PT - JOURNAL ARTICLE ED - , TI - Correction DP - 2009 Apr 01 TA - Canadian Family Physician PG - 352--352 VI - 55 IP - 4 4099 - http://www.cfp.ca/content/55/4/352.2.short 4100 - http://www.cfp.ca/content/55/4/352.2.full SO - Can Fam Physician2009 Apr 01; 55