PT - JOURNAL ARTICLE AU - Collier, Roger TI - Clinical practice guidelines as marketing tools AID - 10.1503/cmaj.109-3781 DP - 2010 Jan 01 TA - Canadian Medical Association Journal PG - cmaj.109-3781 4099 - http://www.cmaj.ca/content/early/2011/01/10/cmaj.109-3781.short 4100 - http://www.cmaj.ca/content/early/2011/01/10/cmaj.109-3781.full