TY - JOUR T1 - Evaluation of Two Salmonella typhimurium Hybrids as Challenge Organisms in a System for the Assay of Typhoid Vaccines JO - Infection and Immunity UR - https://doi.org/10.1128/iai.38.1.201-205.1982 PY - 1982/10/01 AU - Johnson EM AU - Diena BB AU - Lior H AU - Ryan A AU - Krol P AU - Baron LS ED - DO - DOI: 10.1128/iai.38.1.201-205.1982 PB - American Society for Microbiology VL - 38 IS - 1 SP - 201 EP - 205 Y2 - 2026/10/16 ER -