1. Department of Biological Nanochemistry, Institute of Molecular Pharmacology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
2. Department of Clinical Chemistry, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
3. Department of Biomedical Engineering and Physics, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
4. Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany