1. Key Laboratory of Environmental Medicine Engineering, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Ministry of Education, Nanjing, Jiangsu, China.
2. Institute for STI and HIV Control and Prevention, Nanjing Municipal Center for Disease Control and Prevention, Nanjing, Jiangsu, China.
3. Department of Lung Transplant Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China.