title: [Relation between the contents of superoxide dismutase and trace elements in the sera of patients with collagen diseases].
authors.forename: W
authors.initials: W
authors.lastname: Ma
mesh_terms: D001172:Arthritis, Rheumatoid / Q000378:metabolism; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000378:metabolism*; D012595:Scleroderma, Systemic / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism*; D014131:Trace Elements / Q000097:blood*
chemical_list: D014131:Trace Elements; D013482:Superoxide Dismutase