TY - JOUR T1 - Briefly JF - Canadian Medical Association Journal JO - CMAJ SP - E453 LP - E456 DO - 10.1503/cmaj.109-3286 VL - 182 IS - 10 A2 - , Y1 - 2010/07/13 UR - http://www.cmaj.ca/content/182/10/E453.abstract ER -