1. Centre for Environmental Safety and Security; National Institute for Public Health and the Environment (RIVM); Bilthoven The Netherlands
2. Medical Technology Research Group; Inholland University of Applied Sciences; Haarlem The Netherlands
3. Institute of Epidemiology, Helmholtz Zentrum München; German Research Center for Environmental Health; Neuherberg Germany
4. Department of Radiation Protection and Health; Federal Office for Radiation Protection; Neuherberg Germany