RT Journal Article SR Electronic T1 Does bilingualism delay dementia? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E209 OP E210 DO 10.1503/cmaj.109-5022 VO 187 IS 7 A1 Strauss, Stephen YR 2015 UL http://www.cmaj.ca/content/187/7/E209.abstract