Another study assessing a German population also failed to detect an association between SLC1A4 and schizophrenia [51], while earlier studies that mapped schizophrenia susceptibility to the same chromosomal region as SLC1A4 had failed to identify any variants within SLC1A4 that segregated with schizophrenia [47,48]. The gene discussed is SLC1A4; the disease is schizophrenia.