RT Journal Article SR Electronic T1 Nova Scotia hospital buys bulletproof vests JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E164 OP E164 DO 10.1503/cmaj.109-3155 VO 182 IS 3 A1 donalee Moulton YR 2010 UL http://www.cmaj.ca/content/182/3/E164.abstract