title: Retroperitoneal fibrosis in children.
mesh_terms: D001171:Arthritis, Juvenile / Q000150:complications*; D002648:Child; D005260:Female; D006801:Humans; D011241:Prednisone / Q000627:therapeutic use; D012185:Retroperitoneal Fibrosis / Q000150:complications* / Q000188:drug therapy
chemical_list: D011241:Prednisone