TY - JOUR T1 - Universal truths JF - Canadian Medical Association Journal JO - CMAJ SP - 506 LP - 506-a DO - 10.1503/cmaj.090125 VL - 180 IS - 5 AU - Yasir Hameed Y1 - 2009/03/03 UR - http://www.cmaj.ca/content/180/5/506.2.abstract ER -