1 Department of Psychiatry, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, People's Republic of China.
2 Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China.
3 Mood Disorders Psychopharmacology Unit, University Health Network; Department of Psychiatry, University of Toronto; Institute of Medical Science, University of Toronto; Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
4 Department of Psychiatry, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, People's Republic of China. fanbf@foxmail.com.
5 Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China. luciyong@mail.sysu.edu.cn.