Steiner, J., Westphal, S., Schroeter, M. L., Schiltz, K., Jordan, W., Müller, U. J., Bernstein, H.-G., Bogerts, B., Schmidt,
R. E., & Jacobs, R. (2012). Increased S100B+ NK cell counts in acutely ill schizophrenia
patients are correlated with the free cortisol index, but not with S100B serum levels. Brain, Behavior,
and Immunity, 26(4), 564-567. doi:10.1016/j.bbi.2012.01.018.