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Significant exosomal surface markers in survival analysis of idiopathic pulmonary fibrosis patients. (a,b) Kaplan-Maier survival analysis dividing idiopathic pulmonary fibrosis patients according to CD8 (cut-off 1.53) and CD25 (cut-off 0.48), respectively. (red), Thres = FALSE; (black), thres = TRUE.
