TY - JOUR T1 - The best type of trial JF - Canadian Medical Association Journal JO - CMAJ SP - 1772 LP - 1772-a DO - 10.1503/cmaj.1040320 VL - 170 IS - 12 AU - J.A. Chris Delaney Y1 - 2004/06/08 UR - http://www.cmaj.ca/content/170/12/1772.2.abstract ER -