RT Journal Article SR Electronic T1 Drug-facilitated sexual assault JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 493 OP 494 DO 10.1503/cmaj.090006 VO 180 IS 5 A1 Bernadette Butler A1 Jan Welch YR 2009 UL http://www.cmaj.ca/content/180/5/493.abstract