Figure 1From: Change in serum KL-6 level from baseline is useful for predicting life-threatening EGFR-TKIs induced interstitial lung diseaseAbsolute serum levels of KL-6 at baseline in patients with and without preexisting pulmonary fibrosis. Each point represents the absolute serum KL-6 level at baseline in patients with and without preexisting pulmonary fibrosis. There was no significant difference between the two groups (p = 0.207, Mann-Whitney U-test).Back to article page