1. University of Virginia, Charlottesville, VA, USA
2. Columbia University, New York, NY, USA
3. New York State Psychiatric Institute, New York City, USA
4. University of Massachusetts Medical School-Baystate, Springfield, USA
5. New York University, New York City, USA
6. Friends Research Institute, Baltimore, MD, USA
7. Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA
8. Weill Cornell Medical College, New York, NY, USA
9. University of Pennsylvania, Philadelphia, PA, USA