1. Department of Chemistry The George Washington University Washington DC 20052 USA
2. Research Center for Genetic Medicine Children's National Medical Center Washington DC 20010 USA
3. UES, Inc. Beavercreek OH 45432 USA
4. Division of Rheumatology, School of Medicine and Health Sciences The George Washington University Washington DC 20037 USA
5. Chemistry Division U.S. Naval Research Laboratory Washington DC 20375 USA