1. Department of Chemistry and Biochemistry The City College of New York 160 Convent Avenue New York NY 10031 USA
2. Department of Biological Sciences Border Biomedical Research Center The University of Texas at El Paso El Paso TX 79968 USA
3. Department of Microbiology and Immunology Rega Institute of Medical Research Herestraat 49 – Box 1043 3000 Leuven Leuven Belgium
4. The Ph.D. Program in Chemistry The Graduate Center of the City University of New York New York NY 10016 USA