Correction to: Molecular Psychiatry (2005) 10, 944–949. doi:10.1038/sj.mp.4001698

Following publication of the above article, the authors identified the following error: the reverse PCR primers (Table 1) and the extension primer sequence for marker rs1843809 in Table 1 on page 946 have been incorrectly labeled as 3′–5′ when they in fact are 5′–3′.