CXCL10 and idiopathic pulmonary fibrosis: Among the IPF patients, BALF MMP-8 levels do not correlate significantly with BALF levels of either MIP-1α or IP-10 (Spearman Rank Correlation Coefficients  =  0.07 [p = 0.84] and 0.31 [p = 0.29], respectively).