1. Department of Gynaecology and Obstetrics, First People’s Hospital of Taizhou, Taizhou, China
2. Department of Gastroenterology, Hospital of Zhejiang Red Cross, Hangzhou, China
3. Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China