1. Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20889
2. Institut de Radioprotection et de Sûreté Nucléaire, 92262 Fontenay aux roses cedex, France
3. Division of Cellular Therapy and Stem Cell Transplantation, Duke University Medical Center, Durham, North Carolina 27710
4. Medical College of Wisconsin, Milwaukee, Wisconsin 53226
5. MJW Corp., Amherst, New York 14228, and Radiation Emergency Assistance Center/Training Site, Oak Ridge, Tennessee, 37830
6. UK Health Protection Agency, Centre for Radiation, Chemical, and Environmental Hazards, Chilton, OX11 0RQ, United Kingdom
7. Maastricht Radiotherapy and Oncology Clinic (MAASTRO Clinic), Maastricht, the Netherlands
8. Bundeswehr Institute of Radiobiology, D-80937 Munich, Germany
9. Naval Dosimetry Center, Bethesda, Maryland 20889, and Uniformed Services University, Bethesda, Maryland 20814
10. Children's Hospital Oakland Research Institute (CHORI), Oakland, California 94609
11. University of Minnesota, Minneapolis, MN 55455
12. Stockholm University, Sweden
13. Physics Department, Oklahoma State University, Stillwater, Oklahoma 74078