1. Radiology Department, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
2. Consumer and Clinical Radiation Protection Bureau, Health Canada, Ottawa, Canada
3. Public Health England Centre for Radiation, Chemical and Environmental Hazards, Oxford, UK
4. Bundeswehr Institute of Radiobiology, Affiliated to the University of Ulm, Munich, Germany
5. Department for Research on Dosimetry, IRSN, Fontenay-aux-roses, France
6. Department for Research on the Biological and Health Effects of Ionising Radiation, IRSN, Fontenay-aux-roses, France
7. Department of Radiation Oncology, University of Florida, Gainesville, FL, USA