Urachal anomalies in children: the vanishing relevance of the preoperative voiding cystourethrogram.
Little DC, Shah SR, St Peter SD, Calkins CM, Murphy JP, Gatti JM, Gittes GK, Sharp RJ, Andrews WS, Holcomb GW, Ostlie DJ, Snyder CL. Urachal anomalies in children: the vanishing relevance of the preoperative voiding cystourethrogram. J Pediatr Surg. 2005 Dec; 40(12):1874-6.