Torres Serran, R. E., C. Rosselli, C. R. . Olivares Algarín, C. Vallejo Castillo, J. Delgadillo Velásquez, G. C. Quintero Barriga, and P. E. López Correa. “Retroperitoneal Fibrosis As a Cause of Obstructive Uropathy. Case Report”. Revista Colombiana De Nefrología, vol. 6, no. 2, Apr. 2019, pp. 159-65, doi:10.22265/acnef.6.2.330.