n human cardiac fibroblasts may contribute to the functional
activities of heart cells through transfer of electrical signals
between these two cell types.

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To run the models:
XPP: start with the command
xpp ode\LRd01.ode

To press (I)nitial and (L)ast 3-4 times, then change parameter (Par)
period from 200 to 500 msec.  Delayed after-depolarization shown in
attached figure along with triggered activity will emerge.

An author supplied image of the model run:

<img src="./LRd01.jpg" alt="LRd01" widt