TI - TOpic collections PT - JOUR DP - 2009 TA - Archives of Pediatrics & Adolescent Medicine pages = {217}, VI - 163 IP - 3 AID - 10.1001/archpedi.163.3.217 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.163.3.217 SO - Archives of Pediatrics & Adolescent Medicine March 2, 2009 163(3):217