title: Comparative immunological and morphological studies with the protective antigen of Bacillus anthracis.
mesh_terms: D000311:Adrenal Glands / Q000276:immunology; D000818:Animals; D000917:Antibody Formation; D000942:Antigens, Bacterial / Q000008:administration & dosage / Q000302:isolation & purification; D001408:Bacillus anthracis / Q000276:immunology*; D006168:Guinea Pigs; D006736:Horses / Q000276:immunology; D007106:Immune Sera; D007279:Injections, Subcutaneous; D007668:Kidney / Q000276:immunology; D008099:Liver / Q000276:immunology; D008198:Lymph Nodes / Q000276:immunology; D051379:Mice; D013154:Spleen / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D007106:Immune Sera