Contributors

J. Barclay Adams, M.D., Ph.D. Associate Physician Department of Medicine Brigham and Women's Hospital Harvard Medical School Boston, Massachusetts 02115 Janice s. Aikins, Ph.D. Research Computer Scientist IBM Palo Alto Scientific Center 1530 Page Mill Road Palo Alto, California 94304 James s. Bennett, M.S. Senior Knowledge Engineer Teknowledge, Inc. 525 University Avenue Palo Alto, California 94301 Sharon Wraith Bennett, R.Ph.