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- Author(s):
- Welch, William Henry, 1850-1934, author
- Publication:
- [Baltimore?] : [publisher not identified], [1887?]
- Subject(s):
- Communicable Diseases -- etiology
Disease Transmission, Infectious
- Author(s):
- Webb, William H. (William Henry), author
- Publication:
- Philadelphia : William P. Kildare, printer, 1884
- Subject(s):
- Tuberculosis, Pulmonary -- transmission
Disease Transmission, Infectious