Pereyra Bonasso, J. “Fetal Ani Neonatal Diagnosis of Malformations in the Urinary tract.: Experience and Treatment in 30 Cases”. Cirugía Del Uruguay, vol. 57, no. 2-3, Apr. 1987, pp. 63-77, https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/3734.