1 Krankenhaus Dresden-Friedrichstadt, II. Medizinische Klinik, Dresden, Germany.
2 Department of Biomaterials, University of Ulm, Ulm, Germany.
3 Institute for Radiology, University of Regensburg, Regensburg, Germany.
4 Klinik für Innere Medizin III, Universitätsklinikum des Saarlandes, Homburg/Saar, Germany.
5 Fraunhofer Institute Applied Polymer Research (IAP), Division of Life Science and Bioprocesses, Department of Biomaterials and Healthcare, Potsdam-Golm, Germany.
6 Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany.