1. Bauer SB. Anomalies of the upper urinary tract. In: Walsh PC, Retik AB, Vaughan ED, Wein AJ, editors. Campbell’s urology. 8th ed. Philadelphia: WB Saunders; 2002. p. 1898–906.
2. Rubinstein ZJ, Hertz M, Shahin N, et al. Crossed renal ectopia: angiographic findings in six cases. AJR Am J Roentgenol. 1976;126(5):1035–8.
3. Turkvatan A, Olcer T, Cumhur T. Multidetector CT urography of renal fusion anomalies. Diagn Interv Radiol. 2009;15:127–34.
4. Dyer RB, Chen MY, Zagoria RJ. Classic signs in uroradiology. Radiographics. 2004a;24:S247–80.
5. Majidpour HS, Yousefinejad V. Percutaneous management of urinary calculi in horseshoe kidneys. Urol J. 2008;5(3):188–91.