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Start Over You searched for: Subjects Pennsylvania -- epidemiology ✖Remove constraint Subjects: Pennsylvania -- epidemiologyRefine by:
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- Pennsylvania -- epidemiology✖[remove]3
- Air Pollution -- adverse effects1
- Climate1
- College of Physicians of Philadelphia.1
- Disease Outbreaks1
- Air pollution in Donora, Pa: epidemiology of the unusual smog episode of October 1948 : preliminary report1
- 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 Pennsylvania1
- The comparative rarity of pulmonary tuberculosis in the highlands of Pennsylvania and the adjacent counties of New York1
Current results range from 1798 to 1949