As often happens, Doug and his professor published a paper at a conference with a very similar title to his PhD dissertation at about the time he finished grad school. (Its the professor's last chance to get another paper out of a grad student.)
Population classification for managed healthcare within a state-based modeling framework
Fuller, D.N.; Scherer, W.T.;
Systems, Man, and Cybernetics, 2000 IEEE International Conference on
Volume 3, 8-11 Oct. 2000 Page(s):2281 - 2286 vol.3
Digital Object Identifier 10.1109/ICSMC.2000.886
For those of you who subscribe to the IEEE xplore service, you can read the article at
http://ieeexplore.ieee.org/iel5/7099/19155/00886456.pdf