TY - JOUR T1 - The better-than-nothing idea: debating the use of placebo controls JF - Canadian Medical Association Journal JO - CMAJ SP - 573 LP - 573 VL - 166 IS - 5 A2 - , Y1 - 2002/03/05 UR - http://www.cmaj.ca/content/166/5/573.abstract ER -