title: A study of antistreptococcal titers and cross-reactivity of commercial fluorescent antisera.
mesh_terms: D005455:Fluorescent Antibody Technique / Q000592:standards*; D006801:Humans; D007106:Immune Sera / Q000592:standards*; D013045:Species Specificity; D013291:Streptococcus / Q000302:isolation & purification*
chemical_list: D007106:Immune Sera