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1. Proofs of the origin of the yellow fever, in Philadelphia & Kensington: in the year 1797, from the domestic exhalation ; and from the foul air of the snow Navigation, from Marseilles : and from that of the ship Huldah, from Hamburgh, in two letters, addressed to the governor of the Commonwealth of Pennsylvania

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.

2. Air pollution in Donora, Pa: epidemiology of the unusual smog episode of October 1948 : preliminary report

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