1. Department of Magnetic Resonance Imaging, Shanxi Province People's Hospital, Taiyuan, Shanxi 030001, P.R. China
2. Department of Genomics Research, R&D Solutions, Elsevier, Inc., Rockville, MD 20852, USA
3. Department of Neurology, The First People's Hospital Affiliated to Soochow University, Suzhou, Jiangsu 215006, P.R. China