RT Journal Article SR Electronic T1 New medical marijuana regulations shift onus to doctors to prescribe JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E553 OP E554 DO 10.1503/cmaj.109-4528 VO 185 IS 12 A1 Laura Eggertson YR 2013 UL http://www.cmaj.ca/content/185/12/E553.abstract AB