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Start Over You searched for: Subjects Air Pollution -- adverse effects Remove constraint Subjects: Air Pollution -- adverse effects Publication Year 1900 to 1999 Remove constraint Publication Year: <span class="from" data-blrl-begin="1900">1900</span> to <span class="to" data-blrl-end="1999">1999</span>

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