European Federation of Organisations for Medical Physics / World Federation of Nuclear Medicine and Biology / International Atomic Energy Agency / American Health Organization / European Society for Therapeutic Radiology and Oncology / International Organization for Medical Physics / Asia-Oceania Federation of Organizations for Medical Physics / American Association of Physicists / International Commission on Radiation Units and Measurements / American Society for Therapeutic Radiology and Oncology / European Association of Nuclear Medicine / United Nations Scientific Committee on the Effects of Atomic Radiation / / /