1. Comparative Medicine Institute, Department of Clinical Sciences, Intracellular Pathogens Research Laboratory, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA.
2. Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
3. Carolina Center for Neurostimulation and Neuroscience Center, Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
4. Department of Neurology and University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
5. Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.