TY - JOUR T1 - Pharma freebies for doctors linked to opioidprescribing habits JF - Canadian Medical Association Journal JO - CMAJ SP - E202 LP - E202 DO - 10.1503/cmaj.109-5713 VL - 191 IS - 7 AU - Lauren Vogel Y1 - 2019/02/19 UR - http://www.cmaj.ca/content/191/7/E202.abstract ER -