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Non-invasive ventilation in COPD RDIP, Volume 15, Number 4.
Non-invasive ventilation (NIV) has a long history in the form of the negative-pressure ventilators (iron lungs). However, it was not until the advent of effective nasal masks and compact positive-pressure-flow generators in the late 1980s, that this form of treatment could be actively explored across a range of respiratory disorders.
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