1. Malformaciones del aparato urogenital;Garat,1987
2. The clinical management of horseshoe kidney;Gutiérrez;Am J Surg,1931
3. Gutiérrez R. The clinical management of horseshoe kidney. Ed. P.B. Hoeber. N. Yor, 1934
4. Riñón en herradura;Zungri;Act Fund Puigvert,1979