Maier, M.,Ron, M. A., Barker, G. J. & Tofts, P. S. (1995). Proton magnetic resonance spectroscopy: an in vivo method of estimating hippocampal neuronal depletion in schizophrenia. Psychological Medicine 25, 1201–1209. On page 1202, right-hand column, line 7 ‘Nasrallah et al. 1992’ should read ‘Nasrallah et al. 1991’ and the reference should be: Nasrallah, H. A., Skinner, T. S., Schmalbrock, P., O'Bringer, A. & Robitaille, P. M. L. (1991). In vivo H NMR spectroscopy of the hippocampus in schizophrenia. Abstracts of the Society for Neuroscience 21st Annual Meeting 17, 1455.