title: Toxoplasma cystozoite antigenic change in tissue culture.
mesh_terms: D000818:Animals; D000953:Antigens, Protozoan / Q000276:immunology*; D000954:Antigens, Surface / Q000276:immunology*; D002417:Cattle; D002478:Cells, Cultured; D009132:Muscles / Q000469:parasitology; D014122:Toxoplasma / Q000254:growth & development / Q000276:immunology*
chemical_list: D000953:Antigens, Protozoan; D000954:Antigens, Surface