Figure 1From: Airway, but not serum or urinary, levels of YKL-40 reflect inflammation in early cystic fibrosis lung disease Relationship of number of neutrophils in bronchoalveolar lavage (BAL) and YKL-40 in BAL (solid dots, solid line, r 2 = 0.74, p < 0.001) and YKL-40 in serum (open dots, non-significant). Back to article page