Fig. 4From: Systems pharmacology dissection of pharmacological mechanisms of Xiaochaihu decoction against human coronavirusProtein–protein interaction (PPI) of HCoVs-associated targets acted by XCHD. A PPI network. Nodes represent targets and edges represent the interactions among targets. The color brightness and the size of nodes are proportional to degree. B Degrees of the targets in the PPI networkBack to article page