1. Department of Radiology and Biomedical Imaging, Yale School of Medicine, Yale University , New Haven, CT 06510 , USA
2. Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Institute of Pharmaceutical Sciences ETH , 8093 Zurich , Switzerland
3. Institute of Life Science, Swansea University Medical School , Swansea SA2 8PP , UK
4. Department of Neurology, Emory University School of Medicine , Atlanta, GA 30322 , USA
5. Department of Ophthalmology and Visual Sciences, Case Western Reserve University , Cleveland, OH 44106 , USA
6. Department of Radiology and Imaging Sciences , Emory University School of Medicine, Atlanta, GA 30322 , USA
7. Department of Radiology, Division of Nuclear Medicine and Molecular Imaging Massachusetts General Hospital and Harvard Medical School , Boston, MA 02114 , USA
8. Department of Nuclear Medicine, University Hospital Zurich, University of Zurich , 8091 Zurich , Switzerland