1. Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
2. Department of Obstetrics, Chongqing Women’s and Children’s Health Center, Chongqing, China (mainland)
3. International Jointed Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China (mainland)