1. Department of Psychiatry, Mental Health Center of Inner Mongolia, Inner Mongolia, Hohhot, China.
2. Department of Psychiatry, Second Xiangya Hospital of Central South University, Changsha, China.
3. Department of Psychiatry, the First Affiliated Hospital of Inner Mongolia Medical University, Inner Mongolia, Hohhot, China.
4. Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA.