Fig. 2From: Identification of the lipid biomarkers from plasma in idiopathic pulmonary fibrosis by LipidomicsCorrelation analysis of the 35 pre-selected discriminating lipids in IPF patients and controls. R1 to R35 represents the corresponding pre-selected discriminating lipids as shown in Table 2. Red and blue represent a negative and positive correlation, respectively. The color depth represents the degree of correlation: the deeper color indicates higher correlationBack to article page