Fig. 4From: LncRNA landscape and associated ceRNA network in placental villus of unexplained recurrent spontaneous abortionPPI network analysis of differentially expressed mRNAs and identification of hub mRNAs. (A) The PPI interaction network of dif-mRNAs that differed in URSA. Each edge links two interacting genes. The size and the color depth of each node correlates positively with its degree of connectivity. (B) The top 2 significant modules were obtained from the PPI networkBack to article page