Fig. 3From: Gene-expression profiles in lung adenocarcinomas related to chronic wood smoke or tobacco exposureHeat map result of an unsupervised hierarchical clustering of genes significantly different (p < 0.01) of NSCLC adenocarcinoma exposed to wood smoke versus tobacco smoke. Each column represents a patient and each row a gene. The heat map indicates the level of gene expression. Red: high expression; Green: Low expressionBack to article page