title: Studies on the protection test of pertussis vaccine. Immunization period and protectivity. 3. Influence of heat and formation on the vaccine preparation.
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001886:Bordetella pertussis / Q000187:drug effects / Q000276:immunology*; D005557:Formaldehyde / Q000494:pharmacology*; D006358:Hot Temperature; D007115:Immunization Schedule; D007274:Injections, Intraperitoneal; D008433:Mathematics; D051379:Mice; D010567:Pertussis Vaccine; D012459:Salicylates / Q000494:pharmacology; D013223:Statistics as Topic
chemical_list: D010567:Pertussis Vaccine; D012459:Salicylates; D005557:Formaldehyde