1. Department of Radiation Biology, F. Edward Hébert School of Medicine, “America's Medical School” Uniformed Services University of the Health Sciences, Bethesda, Maryland;
2. Armed Forces Radiobiology Research Institute, Bethesda, Maryland;
3. Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare Systems, Little Rock, Arkansas; and
4. Veterinary Sciences Department, Armed Forces Radiobiology Research Institute, Bethesda, Maryland