title: Double stranded DNA antibody quantification by the FARR assay and indirect immunofluorescence test using Crithidia lucilae.
mesh_terms: D000645:Ammonium Sulfate; D000974:Antibodies, Antinuclear / Q000032:analysis*; D003421:Crithidia; D004247:DNA / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis*
chemical_list: D000974:Antibodies, Antinuclear; D004247:DNA; D000645:Ammonium Sulfate