RT Journal T1 PIcture of the month—diagnosis JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2009 FD February 2 VO 163 IS 2 SP 180 OP 180 DO 10.1001/archpediatrics.2008.520-b UL http://dx.doi.org/10.1001/archpediatrics.2008.520-b AB