Search ConstraintsStart Over You searched for: Formats Text Remove constraint Formats: Text Collections World War 1, 1914-1918 Remove constraint Collections: World War 1, 1914-1918 Collections Medicine in the Americas, 1610-1920 Remove constraint Collections: Medicine in the Americas, 1610-1920 Subjects Pneumonia, Viral -- prevention & control Remove constraint Subjects: Pneumonia, Viral -- prevention & control Subjects Vaccination Remove constraint Subjects: Vaccination Titles Studies in influenza and pneumonia. IV, Further results of prophylactic inoculations Remove constraint Titles: Studies in influenza and pneumonia. IV, Further results of prophylactic inoculations Languages English Remove constraint Languages: English Copyright Public domain Remove constraint Copyright: Public domain
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