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Figure 5.
Individual data (excluding subjects with mild bronchiectasis) indicating the relationship between baseline sputum IL-8 concentration and emphysema progression in the upper lung region (voxel index at a threshold -950HU). Spearman's correlation coefficient (r) and its significance (p) are indicated.
Parr et al. Respiratory Research 2006 7:136 doi:10.1186/1465-9921-7-136
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