TI - SUbmissions PT - JOUR DP - 2009 TA - Archives of Pediatrics & Adolescent Medicine pages = {546}, VI - 163 IP - 6 AID - 10.1001/archpedi.163.6.546 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.163.6.546 SO - Archives of Pediatrics & Adolescent Medicine June 1, 2009 163(6):546