This section contains 30 words (approx. 1 page at 300 words per page) |
Poliomyelitis.
Early Experiments Lead to the Iron Lung.
The Prototype.
Operation.
A Lifesaving Invention.
Dependency an Issue.
Impact of the First Mechanical Respirator.
This section contains 30 words (approx. 1 page at 300 words per page) |