Fig. 4From: Exploration of the sputum methylome and omics deconvolution by quadratic programming in molecular profiling of asthma and COPD: the road to sputum omics 2.0Venn diagram visualizations of differentially expressed genes (DEGs). Asthma vs. controls (a) and COPD vs. controls (b). Analyses were performed on the uncorrected, mixed-cell transcriptome dataset (white/black circle), after correction for RNA degradation by correlation filtering (yellow) and after correction by linear regression (blue)Back to article page