1. Obstetrics and Gynecology Medical Center, Zhujiang Hospital Southern Medical University Guangzhou China
2. Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology Guangdong Academy of Sciences Guangzhou China
3. School of Public Health Xinxiang Medical University Xinxiang China
4. Jiangsu New‐bio Biotechnology Co., Ltd. Jiangyin China