1. Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences Scientific Research Department, Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland;
2. Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas;
3. Anatomy, Physiology and Genetics, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland; and
4. Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow 226024, India