TY - JOUR T1 - Correction JF - Canadian Medical Association Journal JO - CMAJ SP - 1375 LP - 1375-b DO - 10.1503/cmaj.1040568 VL - 170 IS - 9 A2 - , Y1 - 2004/04/27 UR - http://www.cmaj.ca/content/170/9/1375.3.abstract ER -