1. Brodie, B. B., Costa, E., Dlabac, A., Neff, N. N., and Smookler, H. H., J. Pharmac. exp. Thér.154 (1966) 493.
2. Raymond-Hamet, M., and Vincent, D., C.r. Soc. Biol.154 (1960) 2223.
3. Zetler, G., and Lessau, W., Pharmacology8 (1972) 235.
4. Zetler, G., Arzneimittel-Forsch.11 (1964) 1277.
5. Prioux-Guyonneau, M., Rapin, J. R., and Wepierre, J., J. Pharmac., Paris8 (1977) 383.