The Lancet · 1985 · 238 citations · 15 references
Veterinary MedicineImmunologyInfectious DiseasesImmunizationVaccine ImmunologyVaccinologyProtective ImmunityVaccinationVaccine EffectivenessVaccine EfficacyVaccine SafetyVaccine-preventable DiseasesAge-specific Efficacy
15
A controlled field trial of a serogroup A meningococcal polysaccharide vaccine.
Wahdan Mh, Farag Rizk, el-Akkad Am et al. · PubMed · 1973 · 137 citations