TI - TOpic collections PT - JOUR DP - 2006 TA - Archives of Pediatrics & Adolescent Medicine pages = {31}, VI - 160 IP - 1 AID - 10.1001/archpedi.160.1.31 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.160.1.31 SO - Archives of Pediatrics & Adolescent Medicine January 1, 2006 160(1):31