RT Journal T1 RAdiological case of the month JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 1999 FD July 1 VO 153 IS 7 SP 761 OP 762 DO 10.1001/archpedi.153.9.995 UL http://dx.doi.org/10.1001/archpedi.153.9.995 AB