1. Russell H. Morgan Department of Radiology and Radiological Sciences, Baltimore, Maryland
2. Department of Psychiatry and Behavioral Sciences, Baltimore, Maryland
3. Solomon Snyder Department of Neuroscience, Baltimore, Maryland
4. Department of Neurology, Baltimore, Maryland
5. Johns Hopkins University School of Medicine, Baltimore, Maryland
6. Sheppard-Pratt Hospital, Baltimore, Maryland
7. Department of Biomedicine, Aarhus University, Aarhus, Denmark
8. Department of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark
9. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
10. Department of Pharmacology and Therapeutics, University of Florida, Gainesville, Florida
11. Department of Psychiatry, University of Colorado, Aurora, Colorado
12. Department of Nuclear Medicine, University of Southern Denmark, Odense, Denmark