TY - JOUR T1 - The duty to warn in the Canadian context JF - Canadian Medical Association Journal JO - CMAJ SP - 1781 LP - 1782 VL - 149 IS - 12 AU - H. E. Emson Y1 - 1993/12/15 UR - http://www.cmaj.ca/content/149/12/1781.abstract ER -