1. Department of Neuro- and Sensory Physiology, University Medical Center Göttingen, Excellence Cluster Multiscale Bioimaging, 37073 Göttingen, Germany.
2. Department of Clinical Chemistry, University Medical Center Göttingen, 37077 Göttingen, Germany.
3. Institute of Medical Systems Biology, Center for Molecular Neurobiology (ZMNH), UKE, 20246 Hamburg, Germany.
4. German Center for Neurodegenerative Diseases (DZNE), 72076 Tübingen, Germany.
5. Department of Neurology, University Medical Center Göttingen, 37073 Göttingen, Germany.
6. Center for Biostructural Imaging of Neurodegeneration (BIN), 37075 Göttingen, Germany.
7. VIB Center for the Biology of Disease and Center for Human Genetics, KU Leuven, Leuven, Belgium.
8. Bioanalytical Mass Spectrometry Group, Max Planck Institute of Biophysical Chemistry, 37077 Göttingen, Germany.
9. Department of Genes and Human Disease, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA.