TY - JOUR T1 - Briefly JF - Canadian Medical Association Journal JO - CMAJ SP - E523 LP - E525 DO - 10.1503/cmaj.109-3312 VL - 182 IS - 11 A2 - , Y1 - 2010/08/10 UR - http://www.cmaj.ca/content/182/11/E523.abstract ER -