1. Center for Brain Imaging School of Life Science and Technology Xidian University Xi’an Shaanxi China
2. State Key Laboratory of Cancer Biology National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases Air Force Medical University Xi'an Shaanxi China
3. Department of Radiology Tangdu Hospital Air Force Medical University Xi’an Shaanxi China
4. Laboratory of Neuroimaging National Institute on Alcohol Abuse and Alcoholism Bethesda Maryland USA