Fig. 4From: Constructing a seventeen-gene signature model for non-obstructive azoospermia based on integrated transcriptome analyses and WGCNAProtein–protein interaction network of common DEGs. A The protein–protein (PPI) network showed the interaction of 1183 common DEGs. B The three key modules consist of co-expressing common DEGs. For A and B, red circles denote up-regulated common DEGs, and green circles denote down-regulated onesBack to article page