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This section contains 23 words (approx. 1 page at 300 words per page) |
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Poliomyelitis.
Early Experiments Lead to the Iron Lung.
The Prototype.
Operation.
A Lifesaving Invention.
Dependency an Issue.
Impact of the First Mechanical Respirator.
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This section contains 23 words (approx. 1 page at 300 words per page) |
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