TGFB1 and congenital diaphragmatic hernia: Our results suggest that a subset of these miRNAs might hold the potential to serve as prognostic circulating biomarkers for the development of CLD in CDH newborns, which should be properly evaluated in an extended cohort, and implicate TGF-β and semaphorin signaling, as well as inflammatory responses, in the development of CLD in CDH.