1. Russell H. Morgan Department of Radiology and Radiological Science Johns Hopkins University School of Medicine Baltimore Maryland USA
2. F. M. Kirby Research Center for Functional Brain Imaging Kennedy Krieger Research Institute Baltimore Maryland USA
3. Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance Xiamen University Xiamen China
4. Division of Cardiology, Department of Medicine Johns Hopkins University School of Medicine Baltimore Maryland USA