title: INTERNATIONAL REFERENCE PREPARATIONS OF TYPHOID VACCINE. A REPORT ON INTERNATIONAL COLLABORATIVE LABORATORY STUDIES.
mesh_terms: D000818:Animals; D001681:Biological Assay; D006801:Humans; D007114:Immunization; D007753:Laboratories; D051379:Mice; D012106:Research; D014435:Typhoid Fever; D014436:Typhoid-Paratyphoid Vaccines; D014611:Vaccination
chemical_list: D014436:Typhoid-Paratyphoid Vaccines
keywords: BIOLOGICAL ASSAY; EXPERIMENTAL LAB STUDY; IMMUNIZATION; MICE; TYPHOID-PARATYPHOID VACCINES