1. Aass, H., T. Skomedal and J.-B. Osnes. Demonstration of an alpha adrenoceptor-mediated inotropic effect of norepinephrine in rabbit papillary muscle. J. Pharmacol. Exp. Ther. 226: 572–578, 1983.
2. Akera, T. Pharmacological agents and myocardial calcium. In: Calcium and the Heart GA Langer, ed., Raven Press, New York, pp. 299–331, 1990.
3. Allen, D.G. and C.H. Orchard. The effects of changes of pH on intracellular calcium transients in mammalian cardiac muscle. J. Physiol. 335: 555–567, 1983.
4. Allen, D.G., and C.H. Orchard. Myocardial contractile function during ischemia and hypoxia. Circ. Res. 60: 153168, 1987.
5. Allen, D.G. and J.A. Lee. EMD 53998 increasees tension with little effect on the amplitude of calcium transients in isolated ferret ventricular muscle. J. Physiol. 416: 43P, 1989.