title: [Clinical significance of the presence of precipitating antibodies against extractable nuclear antigens in sera of patients with polymyositis].
mesh_terms: D000328:Adult; D000974:Antibodies, Antinuclear / Q000032:analysis*; D011232:Chemical Precipitation; D005260:Female; D006801:Humans; D005779:Immunodiffusion; D008297:Male; D008875:Middle Aged; D009220:Myositis / Q000175:diagnosis / Q000276:immunology*; D011379:Prognosis
chemical_list: D000974:Antibodies, Antinuclear