They extracted PPIs related to Danshensu (one of the main active ingredients of Salvia miltiorrhiza, known as Danshen) from the STRING database, then integrated the data with the CHD gene expression profile and microarray data obtained from the GEO database to construct a non-CHD state co-expression protein interaction network (CePIN) and a CHD state CePIN on Cytoscape [30]. This evidence concerns the gene CHDH and coronary artery disorder.