Statistics from Altmetric.com
We read with interest the study of Smith and colleagues,1 because besides their counterintuitive result of thinner airways in COPD, another important result is their smaller airway lumen areas of the whole bronchial tree. Their Table E4 shows that adjusted values of areas for confounding factors are significantly reduced from trachea to the sixth airway generation in COPD.
Based on theoretical arguments, the whole human bronchial tree anatomy can be described by only two factors: the tracheal cross-sectional area and the …
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