RT Journal Article SR Electronic T1 Cannabis money opens new opportunities, and ethical dilemmas, for medical research JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E205 OP E206 DO 10.1503/cmaj.109-5712 VO 191 IS 7 A1 Brian Owens YR 2019 UL http://www.cmaj.ca/content/191/7/E205.abstract AB