1. Schildkraut, J. J., A. Rev. Pharmac., 13, 427–454 (1973).
2. Symposium (several authors), in Proceedings of the Sixth International Congress of Pharmacology, 3, (edit. by Tuomisto, J., and Paasonen, M. K., volume editor Airaksinen, M.), 243–332 (Pergamon, Oxford 1976).
3. Paasonen, M. K., in Proceedings of the Fifth International Congress of Pharmacology, 4, (edit. by Acheson, G. H., volume eds. Bloom, F. E., and Acheson, G. H.), 327–342 (Karger, Basel, 1973).
4. Pletscher, A., Br. J. Pharmac., 32, 1–16 (1968).
5. Sneddon, J. M., Progress in Neurobiology, 1, part 2,1 51–158 (Pergamon Oxford, 1973).