TY - JOUR T1 - Briefly JF - Canadian Medical Association Journal JO - CMAJ SP - E135 LP - E137 DO - 10.1503/cmaj.109-3128 VL - 182 IS - 2 A2 - , Y1 - 2010/02/09 UR - http://www.cmaj.ca/content/182/2/E135.abstract ER -