TY - JOUR T1 - Child's play JF - Canadian Medical Association Journal JO - CMAJ SP - 1211 LP - 1211-a DO - 10.1503/cmaj.1040028 VL - 170 IS - 8 AU - D. Keith Howington Y1 - 2004/04/13 UR - http://www.cmaj.ca/content/170/8/1211.2.abstract ER -