ROBO1 and schizophrenia: We also looked in a genome-wide typed schizophrenia case–control sample for deletions and duplications affecting any of the 20 human genes and found one duplication in ROBO1 in a schizophrenia subject (chr3:79098154-79280400), and two deletions at DLG2, one in a schizophrenia subject and the other in a control individual (chr11:82698224-82899038 and chr11:83450214-83671604, respectively).