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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):
- Armor, Samuel G. (Samuel Glasgow), 1819-1885
- Publication:
- Dayton : B. P. Dubois & Co., 1853
- Subject(s):
- Disease Transmission, Infectious
Philosophy, Medical