Nevertheless GWASs of ADHD and OCD found some top signals within some interesting candidate genes, such as LMOD2, WASL, ASB15, and SHFM1 genes in ADHD GWASs [113,114]; and PTPRD [104] and FAIM2 [105] genes in OCD GWASs. Here, WASL is linked to attention deficit-hyperactivity disorder.