1. Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University , Chengdu 610041 , China
2. Philips Healthcare , Chengdu 610041 , China
3. Department of Radiology, West China Hospital of Sichuan University , Chengdu 610041 , China
4. Department of Experimental and Clinical Pharmacology and Department of Psychiatry and Behavioral Sciences, University of Minnesota , Minneapolis, MN 55455 , USA
5. Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine , Cincinnati, OH 45219 , USA