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. 2021 Jan 15;8(1):e000827. doi: 10.1136/bmjresp-2020-000827

Figure 1.

Figure 1

Distribution of serum calprotectin levels in patients with IPF and in healthy controls. (A) healthy controls (green) and patients with IPF (orange) in the derivation cohort. (B) Patients with IPF from the validation cohort. Dashed lines indicate mean. IPF, idiopathic pulmonary fibrosis.