PT - JOURNAL ARTICLE AU - Silversides, Ann TI - Clinical trials: the muddled Canadian landscape AID - 10.1503/cmaj.081897 DP - 2009 Jan 06 TA - Canadian Medical Association Journal PG - 20--22 VI - 180 IP - 1 4099 - http://www.cmaj.ca/content/180/1/20.short 4100 - http://www.cmaj.ca/content/180/1/20.full SO - CMAJ2009 Jan 06; 180