TY - JOUR T1 - Briefly JF - Canadian Medical Association Journal JO - CMAJ SP - E577 LP - E579 DO - 10.1503/cmaj.109-3332 VL - 182 IS - 12 A2 - , Y1 - 2010/09/07 UR - http://www.cmaj.ca/content/182/12/E577.abstract ER -