Castilho, L. N.; Mitre, A. I.; Iizuka, F. H.; Fugita, O. E. H.; Colombo Jr., J. R.; Arap, S. Laparoscopic Treatment of Retroperitoneal Fibrosis: Report of Two Cases and Review of the Literature . Rev. Hosp. Clín. 2000, 55 (2), 69-76. https://doi.org/10.1590/S0041-87812000000200007.