1. Department of Radiology Vanderbilt University Institute of Imaging Science (VUIIS) Vanderbilt University Medical Center (VUMC) Nashville Tennessee 37232-2310 USA
2. Department of Chemistry Integrative Biosciences (Ibio) Karmanos Cancer Institute (KCI) Wayne State University Detroit Michigan 48202 USA
3. International Tomography Center SB RAS 3A Institutskaya St. Novosibirsk 630090 Russia
4. Novosibirsk State University 2 Pirogova St. Novosibirsk 630090 Russia
5. Department of Chemistry North Carolina State University Raleigh North Carolina 27695-8204 USA
6. Department of Chemistry Duke University Durham North Carolina 27708 USA
7. Department of Chemistry and Biochemistry and Materials Technology Center Southern Illinois University Carbondale Illinois 62901 USA
8. Massachusetts General Hospital, Athinoula A. Martinos Center for Biomedical Imaging Boston Massachusetts 02129 USA
9. Russian Academy of Sciences Leninskiy Prospekt 14 Moscow 119991 Russia