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- Author(s):
- Schrenk, H. H. (Helmuth Herman), 1902- author
Heimann, Harry, 1890- author
Clayton, George D., author
Gafafer, W. M. (William McKinley), 1896- author
Wexler, Harry, 1911-1962, author
- Publication:
- Washington, D.C. : Federal Security Agency, Public Health Service, Bureau of State Services, Division of Industrial Hygiene, 1949
- Subject(s):
- Air Pollution -- adverse effects
Smog -- adverse effects
Respiratory Tract Diseases -- epidemiology
Respiratory Tract Diseases -- chemically induced
Pennsylvania -- epidemiology
- Author(s):
- Academy of Medicine of Philadelphia.
- Publication:
- Philadelphia : Printed by Thomas & Samuel F. Bradford, 1798
- Subject(s):
- Yellow Fever
Disease Outbreaks
Pennsylvania -- epidemiology
College of Physicians of Philadelphia.
- Author(s):
- Trowbridge, G. R. (Grosvenor Reuben), 1863-1908 author
- Publication:
- St. Louis : [publisher not identified], [1891?]
- Subject(s):
- Neurosyphilis -- epidemiology
Pennsylvania -- epidemiology
- Author(s):
- Hinsdale, Guy, 1858-1948 author
- Publication:
- Philadelphia : Lea Brothers & Co., [1894]
- Subject(s):
- Tuberculosis, Pulmonary -- epidemiology
Tuberculosis, Pulmonary -- prevention & control
Protective Factors
Climate
New York -- epidemiology
Pennsylvania -- epidemiology