Figure 3From: Distinct compartmentalization of SP-A and SP-D in the vasculature and lungs of patients with idiopathic pulmonary fibrosis Surfactant protein levels in serum and bronchoalveolar lavage fluid (BALF) of idiopathic pulmonary fibrosis patients. (A) There was no correlation between BALF and serum SP-A levels. (B) Significant positive correlation between BALF and serum SP-D levels was observed (r = 0.377; P = 0.023).Back to article page