title: Antinuclear-factor serum (homogeneous): an international collaborative study of the proposed research standard 66-233.
mesh_terms: D000818:Animals; D000974:Antibodies, Antinuclear / Q000592:standards*; D005455:Fluorescent Antibody Technique / Q000592:standards*; D005612:Freeze Drying; D006801:Humans; D007106:Immune Sera / Q000592:standards*; D008180:Lupus Erythematosus, Systemic / Q000276:immunology; D008722:Methods; D051381:Rats; D013223:Statistics as Topic
chemical_list: D000974:Antibodies, Antinuclear; D007106:Immune Sera