title: Characteristics of the extracellular M proteins of group-A streptococci.
mesh_terms: D000942:Antigens, Bacterial / Q000032:analysis; D001426:Bacterial Proteins / Q000276:immunology / Q000302:isolation & purification*; D003168:Complement Fixation Tests; D005779:Immunodiffusion; D007525:Isoelectric Focusing; D008970:Molecular Weight; D009500:Neutralization Tests; D012703:Serotyping; D013297:Streptococcus pyogenes / Q000032:analysis* / Q000276:immunology; D013997:Time Factors
chemical_list: D000942:Antigens, Bacterial; D001426:Bacterial Proteins