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Incorporating knowledge to databases--a solution to complex domains.

This paper describes the design of an integrated environment to handle information on congenital heart disease patients. A three-layer model that integrates a database, a knowledge-base and a graphical user-interface is presented. The role of each layer and its connections is discussed. The advantages of using a hypertext front-end system to present and retrieve complex data are also addressed. The current status of the project and its future developments are described in the final section.