Tetrodotoxin on the sodium and other ions of cerebral tissues excited electrically and with glutamate: McIlwain, H., Harvey, J. A., and Rodriguez, G. (Dept. of Biochemistry, Inst. of Psychiatry, British Postgraduate Medical Federation, University of London, DeCrespigny Park, London, S.E.5, England) J. Neurochem.16, 363, 1969