1. Roberts, E., Chase, T. N. & Tower, D. B. (eds) GABA in Nervous System Function (Raven, New York, 1976).
2. Iversen, L. L. in Perspectives in Neuropharmacology (ed. Snyder, S. H.) 75–111 (Oxford University Press, New York, 1972).
3. Snyder, S. H. Biochem. Pharmac. 24, 1371–1374 (1975).
4. Kahn, C. R. J. Cell Biol. 70, 261–286 (1976).
5. Zukin, S. R., Young, A. B. & Snyder, S. H. Proc. natn. Acad. Sci. U.S.A. 71, 4802–4807 (1974).