PT - JOURNAL ARTICLE AU - Alicia Priest TI - CanWest set to challenge ban on DTCA AID - 10.1503/cmaj.061505 DP - 2007 Jan 02 TA - Canadian Medical Association Journal PG - 19--20 VI - 176 IP - 1 4099 - http://www.cmaj.ca/content/176/1/19.short 4100 - http://www.cmaj.ca/content/176/1/19.full SO - CMAJ2007 Jan 02; 176