TI - SPecial feature PT - JOUR DP - 2006 TA - Archives of Pediatrics & Adolescent Medicine pages = {189-190}, VI - 160 IP - 2 AID - 10.1001/archpedi.160.2.189 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.160.2.189 SO - Archives of Pediatrics & Adolescent Medicine February 1, 2006 160(2):189