In parallel, prenatal PTSD module M3, involved in TNF signaling, was enriched for schizophrenia genetic risk loci (∩ = 37, P = 0.01), and cellular response to stress module M14 was also enriched for autism spectrum disorder (ASD) genetic risk loci (∩ = 9, P = 0.0009), including the highly penetrant CHD8 locus. Here, CHD8 is linked to post-traumatic stress disorder.