American Journal of Ophthalmology · 1967 · 58 citations · 7 references
VaccinationVaccine SafetyVaccine TestingVaccine TrialVaccine EfficacyVaccine HesitancyMedicineLong-term Follow-upEpidemiology
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Prevention of Trachoma With Vaccine
J. Thomas Grayston, San-Pin Wang, R. L. Woolridge et al. · Archives of Environmental Health An International Journal · 1964 · 43 citations