1. Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
2. Department of Depression Evaluation Service, New York State Psychiatric Institute, 1051 Riverside Drive, Unit #51, New York, NY 10032, USA
3. Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
4. Mailman School of Public Health, Columbia University, New York, NY 10032, USA
5. Institute for the Developing Mind, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA
6. Keck School of Medicine, University of Southern California, Los Angeles, CA 90089-9021, USA