As for ADHD, a pediatric onset disorder typically lacking stereotypies but characterized by presence of other forms of ARB, nine of the 15 identified proteins are disorder associated biomarkers (i.e., Prdx5, Ahr, Ddah1, Dlk1, Gcg, Parp1, Pdgfb, Plxna4, Qdpr; see Fig 4b). The gene discussed is GCG; the disease is attention deficit-hyperactivity disorder.