FGF10 and Pulmonary hypoplasia: Corroboratively, homozygous Fgf10 knockout is neonatal lethal due to complete disruption of branching morphogenesis [22] and heterozygous SNVs or CNV deletions involving FGF10 on 5p12 have been found in newborns with AcDys, CAD, or other pulmonary hypoplasias [15].