1. Squires, R. F. & Braestrup, C. Nature 266, 732–734 (1977).
2. Braestrup, C. & Squires, R. F. Proc. natn. Acad. Sci. U.S.A. (in the press).
3. Möohler, H. & Okada, T. Science (in the press).
4. Möohler, H. & Okada, T. Life Sci. 20, 2101–2110 (1977).
5. Fahn, S. in GABA in Nervous System Function (eds Roberts. E., Chase. T. N. & Tower, D. B.). 169–186 (Raven, New York, 1976).