1. School of Natural Sciences and
Mathematics, University of Texas at Dallas, Richardson, Texas 75080, United States
2. Physics Department, University of Ottawa, Ottawa, Ontario
K1N 6N5, Canada
3. Department of Physics, Tougaloo College, Tougaloo, Mississippi
39174, United States
4. Laboratory
of Computational
Biology, NHLBI, National Institutes of Health, Rockville, Maryland 20894, United States
5. Department of Pharmacology, University of Buffalo, Buffalo, New
York 14260, United States
6. Department of Radiation
Oncology, University of Texas, Southwestern Medical Center, Dallas, Texas 75390, United States
7. Indiana University Cyclotron Facility, Bloomington, Indiana 47408, United
States