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Buffering and total calcium levels determine the presence of oscillatory regimes in cardiac cells

Fig 10

Structure of the nullclines at different values of indicated in the title of each panel.

The black line indicates the first nullcline , while the orange lines corresponds to . Dots indicate the fixed points. Filled dot: stable fixed point and unfilled dot: unstable fixed point.

doi: https://doi.org/10.1371/journal.pcbi.1007728.g010