RT Journal T1 PIcture of the month—diagnosis JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2012 FD March 1 VO 166 IS 3 SP 284 OP 284 DO 10.1001/archpediatrics.2011.789b UL http://dx.doi.org/10.1001/archpediatrics.2011.789b AB