PCCB and attention deficit-hyperactivity disorder: However, there were also disease-specific signals, e.g., i) AP006621.3 and PIDD1 for ADHD; ii) ADD3, LMAN2L, and PLEC for BIP; iii) KYAT3 and PLEKHM1 for PTSD; iv) PCCB and GATAD2A for SCZ; and v) LINC02803 for MDD (details are given in Supplementary Table S6).