title: [IDIOPATHIC RETROPERITONEAL FIBROSIS].
mesh_terms: D012185:Retroperitoneal Fibrosis; D012187:Retroperitoneal Space; D014517:Ureteral Obstruction
keywords: RETROPERITONEAL FIBROSIS; RETROPERITONEAL SPACE; URETERAL OBSTRUCTION
vernacular_title: IDIOPATIK RETROPERITONEAL FIBROSIS.