RT Journal T1 SPecial feature JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2006 FD February 1 VO 160 IS 2 SP 189 OP 190 DO 10.1001/archpedi.160.2.189 UL http://dx.doi.org/10.1001/archpedi.160.2.189 AB