RT Journal Article SR Electronic T1 Support urged for physicians who speak out on health care issues JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1005 OP E1006 DO 10.1503/cmaj.109-3990 VO 183 IS 13 A1 Lauren Vogel YR 2011 UL http://www.cmaj.ca/content/183/13/E1005.abstract