Acceleration of contraction by β-adrenoceptor stimulation is greater in ventricular myocytes from failing than non-failing human hearts - Harding, S. E.; Brown, L. A.; Monte, F.; Davies, C. H.; O'Gara, P.; Vescovo, G.; Wynne, D. G.; Poole-Wilson, P. A. (Springer, 1996)
http://dx.doi.org/10.1007/BF00795363
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