RT Journal Article SR Electronic T1 Doctors top list of worst drivers for fifth straight year JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E896 OP E897 DO 10.1503/cmaj.109-5632 VO 190 IS 29 A1 Roger Collier YR 2018 UL http://www.cmaj.ca/content/190/29/E896.abstract