RT Journal T1 PIcture of the month—diagnosis JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2012 FD April 1 VO 166 IS 4 SP 378 OP 379 DO 10.1001/archpediatrics.2011.875b UL http://dx.doi.org/10.1001/archpediatrics.2011.875b AB