TY - JOUR T1 - Briefly JF - Canadian Medical Association Journal JO - CMAJ SP - E235 LP - E236 DO - 10.1503/cmaj.109-3077 VL - 181 IS - 10 AU - Roger Collier AU - Wayne Kondro Y1 - 2009/11/10 UR - http://www.cmaj.ca/content/181/10/E235.abstract ER -