title: Participation of type antigen R in the immunofluorescence reaction of group B streptococci.
mesh_terms: D000941:Antigens; D005455:Fluorescent Antibody Technique; D007106:Immune Sera; D010434:Pepsin A; D013291:Streptococcus / Q000276:immunology*; D014357:Trypsin
chemical_list: D000941:Antigens; D007106:Immune Sera; D014357:Trypsin; D010434:Pepsin A