RT Journal T1 ABout this journal JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2004 FD April 1 VO 158 IS 4 SP 302 OP 302 DO 10.1001/archpedi.158.4.302 UL http://dx.doi.org/10.1001/archpedi.158.4.302 AB