title: Serum ferritin concentration in rheumatoid arthritis.
mesh_terms: D000328:Adult; D000368:Aged; D000740:Anemia / Q000097:blood; D001172:Arthritis, Rheumatoid / Q000097:blood*; D005260:Female; D005293:Ferritins / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012727:Sex Characteristics
chemical_list: D005293:Ferritins