1. Bovet, D., and Longo, V. G., J. Pharmacol. and Exp. Therap., 102, 22 (1951).
2. Cahen, Raymond L., and Lynes, Thomas E., J. Pharmacol. and Exp. Therap., 103, 44 (1953). Cahen, Raymond L., Thomas, Joan M., and Tvede, Kristen M., J. Pharmacol. and Exp. Therap., 107, 424 (1953). Cahen, Raymond L., Proc. Soc. Exp. Biol. and Med., 84, 474 (1953).