1) ERSPAMER, V.: Hand. exp. Pharmacol. XIX, Edited by EICHLER, O. AND FARAH, A., p. 245, Springer-Verlag, Berlin, Heidelberg and New York (1966)
2) DOUGLAS, W.W.: The Pharmacological Basis of Therapeutics, Edited by GOODMAN, L.S. AND GILMAN, A. 5th ed., p. 590, MacMillan Publishing Co., Inc., New York (1975)
3) JAMES, T.N.: J. Pharmacol. exp. Ther. 146, 209 (1964)
4) BUCCINO, R.T., COVELL, J.W., SONNENBLICK, E.H. AND BRAUNWALD, E.: Am. J. Physiol. 213, 483 (1967)
5) SONNENBLICK, E.H.: Am. J. Physiol. 202, 931 (1962)