1. Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
2. Department of Ophthalmology, University Hospitals Leuven, Leuven, Belgium
3. Department of Pathology, University Hospitals Leuven, Leuven, Belgium
4. Department of Nuclear Medicine, University Hospitals Leuven, Leuven, Belgium
5. Biostatistics and Statistical Bioinformatics Center, Leuven, Belgium
6. Laboratory of Neuropathology, Department of Imaging and Pathology and Leuven Brain Institute, KU-Leuven, Leuven, Belgium