PT - JOURNAL ARTICLE ED - , TI - Briefly AID - 10.1503/cmaj.109-4419 DP - 2013 Apr 02 TA - Canadian Medical Association Journal PG - E253--E254 VI - 185 IP - 6 4099 - http://www.cmaj.ca/content/185/6/E253.short 4100 - http://www.cmaj.ca/content/185/6/E253.full SO - CMAJ2013 Apr 02; 185