RT Journal Article SR Electronic T1 The role of physicians in the violence epidemic JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E644 OP E644 DO 10.1503/cmaj.72017 VO 191 IS 23 A1 Cécile Rousseau A1 Ghayda Hassan A1 Rochelle Frounfelker YR 2019 UL http://www.cmaj.ca/content/191/23/E644.abstract