RT Journal T1 PIcture of the month—diagnosis JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2009 FD September 7 VO 163 IS 9 SP 864 OP 864 DO 10.1001/archpediatrics.2009.146-b UL http://dx.doi.org/10.1001/archpediatrics.2009.146-b AB