RT Journal Article SR Electronic T1 Is there a greater risk of dying in a car crash when other passengers are unrestrained? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1793 OP 1793 DO 10.1503/cmaj.1040623 VO 170 IS 12 A1 Donald A. Redelmeier A1 Harriette G.C. Van Spall YR 2004 UL http://www.cmaj.ca/content/170/12/1793.abstract