PT - JOURNAL ARTICLE AU - Ron Keren TI - Questioning the evidence AID - 10.1503/cmaj.1060013 DP - 2006 Apr 25 TA - Canadian Medical Association Journal PG - 1304--1305 VI - 174 IP - 9 4099 - http://www.cmaj.ca/content/174/9/1304.2.short 4100 - http://www.cmaj.ca/content/174/9/1304.2.full SO - CMAJ2006 Apr 25; 174