TY - JOUR T1 - Shedding light on retractions JF - Canadian Medical Association Journal JO - CMAJ SP - E385 LP - E386 DO - 10.1503/cmaj.109-3827 VL - 183 IS - 7 AU - Roger Collier Y1 - 2011/04/19 UR - http://www.cmaj.ca/content/183/7/E385.abstract ER -