TY - JOUR T1 - Advocacy groups continue to scorn screening guidelines JF - Canadian Medical Association Journal JO - CMAJ SP - E295 LP - E296 DO - 10.1503/cmaj.109-4147 VL - 184 IS - 6 AU - Lauren Vogel Y1 - 2012/04/03 UR - http://www.cmaj.ca/content/184/6/E295.abstract ER -