[1] Guangzhou Medical University,Department of Preventive Medicine, School of Public Health
[2] Guangzhou Center for Disease Control and Prevention,School of Public Health
[3] Sun Yat-Sen University,JC School of Public Health and Primary Care, Faculty of Medicine
[4] The Chinese University of Hong Kong,Department of Nursing, School of Nursing
[5] Guangzhou Medical University,Institute of Public Health, School of Nursing
[6] Henan University,The Third Affiliated Hospital of Guangzhou Medical University
[7] Guangzhou Medical University,undefined