U.S. Department of Health & Human Services
Annual address before the State Board of Health of Pennsylvania
Dixon, Samuel Gibson, 1851-1918, author
Pennsylvania. State Board of Health and Vital Statistics.
[Pennsylvania?] : [publisher not identified], [1891?]
Tuberculosis, Pulmonary -- microbiology
Tuberculosis, Pulmonary -- prevention & control
The National Library of Medicine believes this item to be in the public domain.
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