1. A UMLS-based knowledge acquisition tool for rule-based clinical decision support system development;Achour;Journal of the American Medical Informatics Association,2001
2. What are ontologies, and why do we need them?;Chandrasekaran;IEEE Intelligent Systems and their Applications,1999
3. Toward standardization of electronic guidelines;Elkin;MD Computing,2000
4. Falasconi, S., Stefanelli, M., 1994. A library of implemented ontologies. In: Proceedings of the ECAI Workshop on Comparison of Implemented Ontologies, Amsterdam, pp. 81–91.
5. Building a chemical ontology using methondology and the ontology design environment;Fernandez;IEEE Intelligent Systems and their Applications,1999