TY - JOUR T1 - Childproof caps, revisited JF - Canadian Medical Association Journal JO - CMAJ SP - 1550b LP - 1550 VL - 155 IS - 11 AU - L. Sutherland Y1 - 1996/12/01 UR - http://www.cmaj.ca/content/155/11/1550b.abstract ER -