title: Idiopathic retroperitoneal fibrosis.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008784:Methysergide / Q000009:adverse effects; D008875:Middle Aged; D011183:Postoperative Complications; D011379:Prognosis; D012185:Retroperitoneal Fibrosis / Q000139:chemically induced / Q000175:diagnosis / Q000628:therapy
chemical_list: D008784:Methysergide