Tasha et al. conducted a genome-wide association analysis of 1616 pulmonary fibrosis cases and 4683 control cases, and identified seven new susceptibility loci for pulmonary fibrosis, including FAM13A, DSP, OBFC1, ATP11A, DPP9, and chromosome regions 7q22 and 15q14–15 [29]. This evidence concerns the gene DPP9 and pulmonary fibrosis.