1. Laboratory of Pharmaceutical Technology, Department of Pharmaceutics, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium, Department of Molecular Biomedical Research, Ghent University, Technologiepark Zwijnaarde 927, 9052 Ghent, Belgium, and Laboratory of Radiopharmacy, Department of Pharmaceutical Analysis, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium