NRG1 and schizophrenia: An exploratory examination of schizophrenia patients in positive symptom remission vs. non-remission revealed no statistically significant differences in levels of any of the NRG1 isoforms or NRG1-β1 serum protein after correction for multiple comparisons, although a trend (Praw = 0.013, PB-H = 0.065) toward greater NRG1 type III expression in remitters vs. non-remitters was observed (Supplementary Table S7).