RT Journal Article SR Electronic T1 Vetting journal advertisements JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 931 OP 931-b DO 10.1503/cmaj.081549 VO 179 IS 9 A1 Proctor, Glenda YR 2008 UL http://www.cmaj.ca/content/179/9/931.3.abstract