title: Prevalence of Ro (SS-A) antibodies in patients with polymyositis.
mesh_terms: D000974:Antibodies, Antinuclear / Q000302:isolation & purification*; D003882:Dermatomyositis / Q000276:immunology*; D005260:Female; D006801:Humans; D008297:Male; D009220:Myositis / Q000276:immunology*
chemical_list: D000974:Antibodies, Antinuclear; C035356:SS-A antibodies