Experimental data summary.

<p>a) <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0056359#pone.0056359-Glukhov1" target="_blank">[4]</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0056359#pone.0056359-Glukhov2" target="_blank">[6]</a> report a transmural flattening of APD in heart failure caused by prolongation of AP at the epicardium, but not in the midmyocardium or endocardium.</p><p>b) Not computed, see figures in those papers.</p>