1. Section on Quantitative Imaging and Tissue Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH , Bethesda, MD 20891 , USA
2. Multiscale Imaging and Integrative Biophysics Unit, Laboratory of Behavioral Neuroscience, National Institute on Aging, NIH , Baltimore, MD 21224 , USA
3. Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences , Bethesda, MD 20814 , USA
4. Department of Pathology, F. Edward Hébert School of Medicine, Uniformed Services University , Bethesda, MD 20814 , USA
5. The Department of Defense/Uniformed Services, University Brain Tissue Repository , Bethesda, MD 20814 , USA
6. The Henry M. Jackson Foundation for the Advancement of Military Medicine (HJF) , Bethesda, MD 20817 , USA
7. Department of Neurology, F. Edward Hébert School of Medicine, Uniformed Services University , Bethesda, MD 20814 , USA
8. Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, NIH , Bethesda, MD 20892 , USA