In addition, from DMLCN, the lncRNA–mRNA co-expression network, we found that Rmi2 coexpressed with most numbers of lncRNAs (Figure 8A) and Eif2s3y coexpressed with most numbers of lncRNAs (Figure 8B), forming a complex network in UC-MSC-infused group or CB-MNC-infused group relative to BPD model, respectively. The gene discussed is RMI2; the disease is bronchopulmonary dysplasia.