RT Journal T1 ABout this journal JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2009 FD September 7 VO 163 IS 9 SP 779 OP 779 DO 10.1001/archpedi.163.9.779 UL http://dx.doi.org/10.1001/archpedi.163.9.779 AB