TY - JOUR T1 - Briefly JF - Canadian Medical Association Journal JO - CMAJ SP - E655 LP - E658 DO - 10.1503/cmaj.109-4266 VL - 184 IS - 12 A2 - , Y1 - 2012/09/04 UR - http://www.cmaj.ca/content/184/12/E655.abstract ER -