RT Journal Article SR Electronic T1 Mandatory vaccinations: The Canadian picture JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1165 OP E1166 DO 10.1503/cmaj.109-3992 VO 183 IS 16 A1 Erin Walkinshaw YR 2011 UL http://www.cmaj.ca/content/183/16/E1165.abstract AB