1. Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
2. Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, New Zealand
3. Ministry of Education of China International Collaborative Joint Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China (mainland)
4. Department of Obstetrics and Gynecology, The First People’s Hospital of Yuhang District, Hangzhou, Zhejiang, China (mainland)