1. Fink, G., and Harris, G. W., J. Physiol., Lond., 208, 221–241 (1976).
2. Eskay, R. L., Oliver, C., Ben-Jonathan, N., and Porter, J. C., in Hypothalamic Hormones (edit. by Motta, M., Crosignani, P. G., and Martini, L.), 125–137 (Academic, London, 1975).
3. Fink, G., and Jamieson, M. G., J. Endocr., 68, 71–87 (1976).
4. Timms, R. J., J. Physiol, Lond., 256, 71P–72P (1976).
5. Niswender, G. D., Midgley, A. R. Jr, Monroe, S. E., and Reichert, L. E. Jr, Proc. Soc. exp. Biol. Med., 128, 807–811 (1968).