1. School of Computer Science and Technology, Nanjing Normal University, Nanjing, Jiangsu 210023, China
2. Department of Radiology, Nanjing Childrens Hospital, Nanjing Medical University, Nanjing 210008, China
3. School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081, China
4. Department of Radiology, Zhong-Da Hospital of Southeast University, Nanjing 210009, China
5. Translational Imaging Division & MRI Unit, Columbia University and New York, State Psychiatric Institute, New York, NY 10032, USA
6. School of Computer Science and Technology, Nanjing Normal University, Nanjing, Jiangsu 210023, China. zhangyudong@njnu.edu.cn