1. Grishman R, Sundheim B. Message understanding conference—6: a brief history. In: Proceedings of the 16th International Conference on Computational Linguistics; 1996. p. 466–71
2. MUC-7 Message Understanding Conference Proceedings; 1998. Available from: http://www.itl.nist.gov/iaui/894.02/related_projects/muc/proceedings/muc_7_toc.html
3. Medical language processing: computer management of narrative data;Sager,1987
4. Haug PJ, Christensen L, Gundersen M, Clemons B, Koehler S, Bauer K. A natural language parsing system for encoding admitting diagnoses. In: Proceedings of the AMIA Annual Fall Symposium; 1997. p. 814–18
5. Natural language processing in an operational clinical information system;Friedman;Nat. Lang. Eng.,1995