title: Antinuclear antibody-negative systemic lupus erythematosus in India with anti-ssDNA antibodies.
mesh_terms: D000328:Adult; D000906:Antibodies / Q000032:analysis*; D000974:Antibodies, Antinuclear / Q000032:analysis*; D004277:DNA, Single-Stranded / Q000276:immunology*; D005260:Female; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000276:immunology*
chemical_list: D000906:Antibodies; D000974:Antibodies, Antinuclear; D004277:DNA, Single-Stranded