1. Medicine, computers, and linguistics;Pratt;Adv Biomed Eng,1973
2. Natural language processing in medicine: an overview;Spyns;Methods Inf Med,1996
3. A tagged corpus – problems and prospects;Francis,1979
4. Building a large annotated corpus of English;Marcus;Comput Linguist,1993
5. Ide NM, Macleod C. The American national corpus: a standardized resource of American English. In: Proceedings of corpus linguistics. Lancaster, UK; 2001.