TY - JOUR T1 - Clinical trial registries becoming a reality, but long-term effects remain uncertain JF - Canadian Medical Association Journal JO - CMAJ SP - 1007 LP - 1008 DO - 10.1503/cmaj.090625 VL - 180 IS - 10 AU - Roger Collier Y1 - 2009/05/12 UR - http://www.cmaj.ca/content/180/10/1007.abstract ER -