TY - JOUR T1 - Briefly JF - Canadian Medical Association Journal JO - CMAJ SP - E159 LP - E160 DO - 10.1503/cmaj.109-1039 VL - 181 IS - 8 AU - Roger Collier AU - Ann Silversides AU - Wayne Kondro Y1 - 2009/10/13 UR - http://www.cmaj.ca/content/181/8/E159.abstract ER -