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NATIONAL ACADEMY OF SCIENCES INSTITUTE OF MEDICINE 2101 Constitution Avenue, Washington, D.C. 20418 November 20, 1998 Albert W. Burgstahler, Ph.D. and others Professor of Chemistry The University of Kansas 4035 Malott Hall Lawrence, Kansas 66045 Dear Dr. Burgstahler: We apologize for the delay in responding to your letters of October 15, 1997 and February 4, […]