Preface and Acknowledgments; Section I. Basic Concepts; Chapter 1. Terms, Models, and Resources; Chapter 2. Health Information; Chapter 3. System Evaluation; Section II. State of the Art; Chapter 4. Content; Chapter 5. Indexing; Chapter 6. Retrieval; Chapter 7. Evaluation; Section III. Research Directions; Chapter 8. Statistical Systems; Chapter 9. Linguistic Systems; Chapter 10. Other Research; Section IV. Special Topics; Chapter 11. The Clinical Narrative; Appendix; Sample Documents of Indexing and Retrieval; Index