Hongbo Qi1,Department of Obstetrics, Women and Children’s Hospital of Chongqing Medical University, Chongqing 401147, China2Department of Obstetrics, Chongqing Women and Children's Health Center, Chongqing 401147, China, Liling Xiong3Department of Gynaecology and Obstetrics, Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 611731, China, Chao Tong4State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
1Department of Obstetrics, Women and Children’s Hospital of Chongqing Medical University, Chongqing 401147, China
2Department of Obstetrics, Chongqing Women and Children's Health Center, Chongqing 401147, China
3Department of Gynaecology and Obstetrics, Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 611731, China
4State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Received: May 26, 2022Accepted: July 7, 2022Published: July 13, 2022