1. McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal H3A 2B4, Canada
2. Biomedical Chemistry, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim of Heidelberg University, Mannheim 68167, Germany
3. Department of Nuclear Medicine, University Hospital Munich, Ludwig-Maximilians-University Munich, Munich 81377, Germany
4. Lady Davis Institute, Jewish General Hospital, McGill University, Montreal H3T 1E2, Canada
5. Pharmaceutical Chemistry, Ludwig-Maximilians-University Munich, Munich 81377, Germany
6. Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, Heidelberg 69120, Germany
7. National Research Council of Canada, Montreal H4P 2R2, Canada
8. Molecular Imaging and Radiochemistry, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim of Heidelberg University, Mannheim 68167, Germany