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Biphasic Cuirass Ventilation

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Negative Pressure <strong>Ventilation</strong><br />

Iron Lung<br />

(1843)<br />

The First Workable Iron Lung<br />

(1847)<br />

The Motorized Iron Lung<br />

(Late 1920‟s)<br />

Dalziel<br />

Woillez<br />

Drinker &<br />

Emerson<br />

First <strong>Cuirass</strong> NPV<br />

Drinker<br />

(1939) & Collins

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