TY - JOUR T1 - Police still investigating sniper attacks on MDs JF - Canadian Medical Association Journal JO - CMAJ SP - 1456 LP - 1456-b VL - 168 IS - 11 AU - Barbara Sibbald Y1 - 2003/05/27 UR - http://www.cmaj.ca/content/168/11/1456.3.abstract ER -