[1] Philipps Univ Marburg, Radiopharmacy Sect, Dept Nucl Med, Marburg, Germany
[2] Philipps Univ, Radiopharmacy sect, Dept Nucl Med, Munich, Germany
[3] Philipps Univ, Radiopharmacy sect, Dept Nucl Med, Marburg, Germany
[4] Karolinska Inst, Dept Clin Neurosci, Stockholm, Sweden
[5] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden
[6] Philipps Univ Marburg, Dept Neurol, Marburg, Germany
[7] Philipps Univ, Dept Nucl Med, Marburg, Germany
[8] Tech Univ Munich, Dept Nucl Med, Munich, Germany
[9] Ludwig Maximilians Univ Munchen, Neurobiobank Munich, Munich, Germany
[10] Philipps Univ Marburg, Dept Nucl Med, Marburg, Germany