For measurements in the mechanical lung model and in the animal experiment, a Bourns Bear Cub infant ventilator (Palm Springs, CA, U.S.A) with a constant-circuit flow was used. The ventilator provided ...
In the COPD patient, routine pulmonary function tests depict the characteristic pattern of volume-dependent airway obstruction. Spirometry typically reveals a reduction in the FEV 1 /FVC ratio and an ...
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