title: Studies on the cholera toxin.
mesh_terms: D000818:Animals; D002771:Cholera / Q000517:prevention & control*; D022121:Cholera Vaccines; D004586:Electrophoresis; D007082:Ileum; D005779:Immunodiffusion; D011817:Rabbits; D014118:Toxins, Biological / Q000302:isolation & purification; D014733:Vibrio / Q000276:immunology
chemical_list: D022121:Cholera Vaccines; D014118:Toxins, Biological