PT - JOURNAL ARTICLE AU - Paul Webster TI - Oversight of opioid advertising in Canada remains lax despite new federal guidance AID - 10.1503/cmaj.109-5612 DP - 2018 Jun 11 TA - Canadian Medical Association Journal PG - E730--E731 VI - 190 IP - 23 4099 - http://www.cmaj.ca/content/190/23/E730.short 4100 - http://www.cmaj.ca/content/190/23/E730.full SO - CMAJ2018 Jun 11; 190