1. Russell H. Morgan Department of Radiology and Radiological Science Johns Hopkins University School of Medicine Baltimore Maryland
2. F.M. Kirby Research Center for Functional Brain Imaging Kennedy Krieger Research Institute Baltimore Maryland
3. Department of Neurology Johns Hopkins University School of Medicine Baltimore Maryland
4. Department of Medical Radiation Physics Lund University Lund Sweden
5. Department of Psychiatry Johns Hopkins University School of Medicine Baltimore Maryland