1. Lang D: Consultant Report - Natural Language Processing in the Health Care Industry. PhD thesis. Cincinnati Children's Hospital Medical Center; 2007.
2. Moisio MA: A Guide to Health Insurance Billing. Thomson Delmar Learning; 2006.
3. Larkey LS, Croft WB: Technical Report - Automatic assignment of icd9 codes to discharge summaries. PhD thesis. University of Massachusetts at Amherst, Amherst, MA; 1995.
4. Lussier Y, Shagina L, C F: Automated ICD-9 encoding using medical language processing: a feasibility study. Proceedings of AMIA Symposium 2000 2000, 1072.
5. de Lima LRS, Laender AHF, Ribeiro-Neto BA: A hierarchical approach to the automatic categorization of medical documents. In CIKM '98: Proceedings of the seventh international conference on Information and knowledge management. New York, NY, USA: ACM Press; 1998:132–139.