title: Steroid therapy as treatment for idiopathic fibrosis of the retroperitoneum and mediastinum.
mesh_terms: D002648:Child; D004334:Drug Administration Schedule; D005355:Fibrosis; D006801:Humans; D008297:Male; D008482:Mediastinum / Q000473:pathology*; D008775:Methylprednisolone / Q000008:administration & dosage*; D011241:Prednisone / Q000008:administration & dosage*; D012185:Retroperitoneal Fibrosis / Q000188:drug therapy* / Q000473:pathology; D014517:Ureteral Obstruction / Q000628:therapy
chemical_list: D011241:Prednisone; D008775:Methylprednisolone