TY - JOUR T1 - Why randomized controlled trials fail but needn't: a new series is launched JF - Canadian Medical Association Journal JO - CMAJ SP - 1301 LP - 1302 VL - 162 IS - 9 AU - David L. Sackett AU - John Hoey Y1 - 2000/05/02 UR - http://www.cmaj.ca/content/162/9/1301.abstract ER -