title: Antigenic variation in populations of Streptococcus salivarius isolated from the human mouth.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000235:genetics*; D003520:Cyclophosphamide / Q000494:pharmacology; D014644:Genetic Variation / Q000187:drug effects; D005856:Germ-Free Life; D006801:Humans; D007114:Immunization; D051381:Rats; D013290:Streptococcal Infections / Q000382:microbiology; D013291:Streptococcus / Q000235:genetics* / Q000276:immunology; D014059:Tongue / Q000382:microbiology*
chemical_list: D000942:Antigens, Bacterial; D003520:Cyclophosphamide