[1] School of Public Health,Department of Epidemiology and Biostatistics
[2] Zhengzhou University,Department of Clinical Pharmacology
[3] School of Pharmaceutical Science,Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College
[4] Zhengzhou University,undefined
[5] Center for Disease Control and Prevention of Suizhou City,undefined
[6] Huazhong University of Science &Technology,undefined