Critically, many of the physiological abnormalities observed in the MGVHB axis appear to be regulated by recently identified prematurity risk genes and specifically the genes associated with gestational duration and the risk of preterm birth: EBF1, EEFSEC, and AGTR2 [9; Fig. 1a] that are also associated with risk of autism [27]. This evidence concerns the gene EEFSEC and autism.