AU - Walsh JG, O'Sullivan MJ, Ryan C TI - RAdiological case of the month PT - JOUR DP - 2001 TA - Archives of Pediatrics & Adolescent Medicine pages = {523-524}, VI - 155 IP - 4 AID - 10.1001/archpedi.155.4.523 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.155.4.523 SO - Archives of Pediatrics & Adolescent Medicine April 1, 2001 155(4):523