TY - JOUR T1 - Rapidly rising clinical trial costs worry researchers JF - Canadian Medical Association Journal JO - CMAJ SP - 277 LP - 278 DO - 10.1503/cmaj.082041 VL - 180 IS - 3 AU - Roger Collier Y1 - 2009/02/03 UR - http://www.cmaj.ca/content/180/3/277.abstract ER -