TY - JOUR T1 - Query JF - Canadian Medical Association Journal JO - CMAJ SP - 208 LP - 208 DO - 10.1503/cmaj.1031758 VL - 171 IS - 2 A2 - , Y1 - 2004/07/20 UR - http://www.cmaj.ca/content/171/2/208.abstract ER -