RT Journal T1 COntact information JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2004 FD April 1 VO 158 IS 4 SP 408 OP 408 DO 10.1001/archpedi.158.4.408 UL http://dx.doi.org/10.1001/archpedi.158.4.408 AB