TY - JOUR T1 - Correction JF - Canadian Medical Association Journal JO - CMAJ SP - 1130 LP - 1130-b DO - 10.1503/cmaj.070353 VL - 176 IS - 8 A2 - , Y1 - 2007/04/10 UR - http://www.cmaj.ca/content/176/8/1130.3.abstract ER -