Affiliation: | 1. State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China;2. Department of Reproductive Medicine, Maternal and Child Health Care Hospital of Nantong City, Nantong, China;3. Key Laboratory of Pathogen Biology of Jiangsu Province, Nanjing Medical University, Nanjing, China;4. Department of Microbiology, Nanjing Medical University, Nanjing, China |