1. Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
2. Department of Clinical Laboratory, Central Hospital of Dalian University of Technology, Dalian, China
3. Microbiome Research and Application Center, BYHEALTH Institute of Nutrition & Health, Guangzhou, China
4. The Third Ward of Obstetrics and Gynecology at Chunliu District, Dalian Women and Children Medical Center (Group), Dalian, China
5. Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, China
6. Dalian Institute of Chemical Physics, Chinese Academy of Sciences Key Laboratory of Separation Science for Analytical Chemistry, Dalian, China