title: [URETERAL OBSTRUCTIONS DUE TO PRIMARY AND SECONDARY RETROPERITONEAL FIBROSIS].
mesh_terms: D006801:Humans; D010336:Pathology; D012185:Retroperitoneal Fibrosis; D012187:Retroperitoneal Space; D014517:Ureteral Obstruction; D014567:Urography
keywords: PATHOLOGY; RETROPERITONEAL FIBROSIS; RETROPERITONEAL SPACE; URETERAL OBSTRUCTION; UROGRAPHY
vernacular_title: LE OSTRUZIONI URETERALI DA FIBROSI RETROPERITONEALE PRIMITIVA E SECONDARIA.