title: Urinary copper excretion in rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000652:urine*; D003300:Copper / Q000652:urine*; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D006801:Humans; D008297:Male; D012737:Sex Factors
chemical_list: D004967:Estrogens; D003300:Copper