1. Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Strasse 4, Marburg 35037, Germany
2. Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, Leipzig University, Eilenburger Strasse 15a, Leipzig 04317, Germany
3. Center for Tumor Biology and Immunology (ZTI), Core Facility Molecular Imaging, Department of Nuclear Medicine, University of Marburg, Hans-Meerwein-Strasse 3, Marburg 35043, Germany