**References:**

Adler, F. R.Modeling the Dynamics of Life: Calculus and Probability for Life Scientists. Brooks/Cole, Pacific Grove, CA, 1998.Glass, L. and M. C. Mackey

From Clocks to Chaos: The Rhythms of Life. Princeton University Press, Princeton, N.J., 1988.Othmer, H. G., F. R. Adler, M. A. Lewis, and J. C. Dallon

Case Studies in Mathematical Modeling: Ecology, Physiology, and Cell Biology, Prentice Hall, Upper Saddle River, N.J., 1997.