1. Department of Electrical Engineering, Information Engineering College, Shanghai Maritime University, Shanghai, China
2. Biomedical Informatics and Cheminformatics Group, Conjugate and Medical Chemistry Laboratory, Division of Nuclear Medicine and Molecular Imaging and Center for Advanced Medical Imaging, Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
3. Department of Mathematics, Harvard University, Cambridge, MA, USA
4. Brain Research Imaging Center, The University of Chicago, Chicago, IL, USA
5. The Hong Kong University of Science and Technology, Hong Kong, China
6. Memory Disorders Unit, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
7. Neurochemistry Laboratory, Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA