Fig. 4From: A computational approach for the identification of key genes and biological pathways of chronic lung diseases: a systems biology approachScheme of 22 proteins shared by COPD, asthma, IPF and MLD. The nodes' size and color indicate the number of interactions they have with other proteins. Hence, a node with a larger size and a redder color indicates more interactions and points with other proteins, whereas a smaller and greener indicate a lower degree of that nodeBack to article page