title: Comparison of antigenic fractions obtained by Seibert and Affronti method from protoplasm and culture filtrates of Mycobacterium bovis (BCG).
mesh_terms: D000818:Animals; D000941:Antigens / Q000302:isolation & purification*; D011232:Chemical Precipitation; D003470:Culture Media; D003593:Cytoplasm / Q000276:immunology*; D004586:Electrophoresis; D006168:Guinea Pigs; D008722:Methods; D009163:Mycobacterium bovis / Q000276:immunology*
chemical_list: D000941:Antigens; D003470:Culture Media