Subjects: Ontario -- epidemiology and Diphtheria -- epidemiology - Digital Collections - National Library of Medicine Search Results

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1. We can do likewise

Publication:: [London] : Ministry of Health, Central Council for Health Education : Printed for H.M.S.O. by J. Weiner, [194-?]
Subject(s):: Diphtheria -- prevention & control
Diphtheria -- epidemiology
Mass Vaccination
Ontario -- epidemiology