RT Journal T1 ABout this journal JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2009 FD July 6 VO 163 IS 7 SP 596 OP 596 DO 10.1001/archpedi.163.7.596 UL http://dx.doi.org/10.1001/archpedi.163.7.596 AB