Hierarchical clustering with 1423 differentially expressed genes between ILD patient and normal control lung samples. Each row represents the expression profile of a gene across 29 samples and each column represents a sample. The sample IDs and clinical information (FVC group and diagnosis) are listed below the heatmap. Red or green colors indicate either higher or lower expression levels of the gene. Based on the dendrogram, the samples can be further separated into four subgroups indicated by red, green, blue and black bars below the heatmap which correlate with ILD other than UIP/IPF, less severe UIP/IPF (FVC 2 and 3), more severe UIP/IPF (FVC 1), and normal control, respectively.
Cho et al. BMC Medical Genomics 2011 4:8 doi:10.1186/1755-8794-4-8