1. National Centre for Nuclear Research, Radioisotope Centre POLATOM, Research and Development Department, Otwock, Poland.
2. Gamma-VET Ltd, Budapest, Hungary.
3. Synlab Budapest Diagnostic Center, Microbiology Laboratory Synlab Hungary Ltd, Budapest, Hungary.
4. National Public Health Center, National Research Directorate on Radiobiology and Radiohygiene, Budapest, Hungary.
5. Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany.