The C/ directory contains the C code for the hemodynamic simulation,
the GUI backend. The 6-comp-backend/ directory contains the code for a
6-compartment hemodynamic model. The 6-compartment model is described
in detail in "Teaching Physiology Through Interactive Simulation of
Hemodynamics", a Masters thesis by Timothy Davis [1].  The
21-comp-backend/ directory contains the code for a 21-compartment
hemodynamic model. The 21-compartment model is described in detail in
"Computational Models of Cardiovascular Response to Orthostatic
Stress", a PhD thesis by Dr. Thomas Heldt [2]. All the code in the C/
directory was written by Dr. Thomas Heldt, with minor modifications by
Catherine Dunn where noted to allow the C code to interface with the
Java code.

1. Davis, Timothy. "Teaching Physiology Through Interactive Simulation of
Hemodynamics." MS Thesis. MIT, 1991.

2. Heldt, Thomas. "Computational Models of Cardiovascular Response to
Orthostatic Stress." PhD Thesis. MIT, 2004.