ERBB4 and schizophrenia: Nevertheless, consistent with this study's results, no association between the ERBB4 rs839523C>T and schizophrenia was found in several population samples, such as Turkish (Sözen and Kartalcı, 2015), Korean (Bae et al., 2012), Han Chinese (Lu et al., 2010), Bulgarian (Betcheva et al., 2009), Japanese (Shiota et al., 2008), and the United Kingdom (Benzel et al., 2007).