RT Journal Article SR Electronic T1 “Poor tax” urged to address mental health issues JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1235 OP E1236 DO 10.1503/cmaj.109-4035 VO 183 IS 17 A1 Lauren Vogel YR 2011 UL http://www.cmaj.ca/content/183/17/E1235.abstract