AU - Bergman A TI - MIddlesex PT - JOUR DP - 2004 TA - Archives of Pediatrics & Adolescent Medicine pages = {500}, VI - 158 IP - 5 AID - 10.1001/archpedi.158.5.500 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.158.5.500 SO - Archives of Pediatrics & Adolescent Medicine May 1, 2004 158(5):500