1. Department of Infectious Diseases; Southwest Hospital; Third Military Medical University; Chongqing China
2. The Chongqing Key Laboratory for Research of Infectious Diseases; Chongqing China
3. Cadre Ward Two; Wuhan General Hospital of Guangzhou Military Command; Wuhan China
4. Department of Gynecology and Obstetrics; Southwest Hospital; Third Military Medical University; Chongqing China
5. National Plateau Wetland Research Center; Southwest Forest University; Kunming China
6. Department of Gynecology and Obstetrics; The First People's Hospital; Zigong Sichuan China