SNPs in several of these genes, particularly CACNA1C, had also been identified previously, and subsequently confirmed with greater power, in studies of people with bipolar disorder (Ferreira et al., 2008, GWAS Consortium, 2011, Lee et al., 2011, Ripke et al., 2013, Cross-disorder group of Psychiatric Genomics Consortium, 2013, Green et al., 2013, Schizophrenia Working Group of the Psychiatric Genomics Consortium, 2014, Nurnberger et al., 2014). The gene discussed is CACNA1C; the disease is bipolar disorder.