1. Department of Therapeutic Radiology, Yale University School of Medicine, 333 Cedar Street, New Haven CT 06520, USA
2. Radiation Emergency Assistance Center/Training Site, Oak Ridge Institute for Science and Education, PO Box 117, MS 39, Oak Ridge TN 37831, USA
3. Naval Dosimetry Center, 8901 Wisconsin Avenue, Bethesda MD 20889, USA
4. Uniformed Services University of the Health Sciences, Armed Forces Radiobiology Research Institute, 4555 South Palmer Road, Bldg. 42, Bethesda MD 20889-5648, USA