BIVM and bronchopulmonary dysplasia: To confirm whether these genes are differentially expressed in BPD patients, through the NCBI GEO dataset, we found decreased expression of BIVM (immunoglobulin-like variable motif) in the cord blood of BPD patients, and BIMV rs3825519 mutation was also found in our study; therefore, we speculated BIMV rs3825519 mutation may lead to decreased expression of BIMV gene.