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Panel A: Serum levels of CC16 are increased in patients with IPF. The concentration of serum CC16 was measured in IPF (n = 85) and non-IPF patients [cHP (n = 85), CTD-ILD (n = 85)], and healthy controls (n = 30) using ELISA. All experiments were performed in duplicate. Panel B: Receiver operating characteristic (ROC) curves used to evaluate serum CC16 as a biomarker for IPF diagnosis.
