[1] Sun Yat-sen University,Department of Medical Statistics and Epidemiology, School of Public Health
[2] State University of New York at Albany,Department of Health Policy and Management, School of Public Health
[3] State University of New York at Albany,Department of Epidemiology and Biostatistics, School of Public Health
[4] San Diego State University,Department of Biostatistics and Epidemiology, Graduate School of Public Health
[5] WHO Collaborating Center for Research and Training in Suicide Prevention,Beijing Huilongguan Hospital, Beijing Suicide Research and Prevention Center
[6] Sun Yat-sen University,Department of Preventive Medicine, School of Public Health