There are currently about 21 million people over 6S years in the United States and over a million of them suffer from a severe degree of mental impairment. This number will undoubtedly increase as more and more people attain their full lifespan. The Veterans Administration is acutely aware of this problem in the population it serves. Currently, there are about 31 million veterans in the United States. About 13 percent of these veterans are over 6S years of age and the number is expected to increase to 40 percent by the turn of the century. In recognition of the pressing need to address this...