1. Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
2. Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
3. Laboratory of Molecular Immunology, School of Basic Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250062, China
4. Shandong Province Maternal and Child Health Care Hospital, Jinan 250013, China
5. Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250001, China