1. Department of Radiology, UCLA Medical Center, Los Angeles, CA, USA
2. Department of Psychiatry, UCLA Medical Center, Los Angeles, CA, USA
3. Department of Nuclear Medicine, UCLA Medical Center, Los Angeles, CA, USA
4. Discipline of Psychiatry, University of Adelaide, Adelaide, South Australia, Australia
5. Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
6. Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA
7. Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
8. Department of Neurology, University of California Davis, Davis, CA, USA
9. Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
10. Department of Neurology, Laboratory of Neuro Imaging, UCLA Medical Center, Los Angeles, CA, USA
11. Department of Neurology and Epidemiology, University of Washington, Seattle, WA, USA
12. Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA