PT - JOURNAL ARTICLE AU - S. Grant Bartlett TI - Child's play AID - 10.1503/cmaj.1040027 DP - 2004 Apr 13 TA - Canadian Medical Association Journal PG - 1210--1211 VI - 170 IP - 8 4099 - http://www.cmaj.ca/content/170/8/1210.4.short 4100 - http://www.cmaj.ca/content/170/8/1210.4.full SO - CMAJ2004 Apr 13; 170