1 Hubei Provinical Clinical Research Center for Accurate Fetus Malformation Diagnosis, Department of Ultrasound, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, 441000, China.
2 Depatment of Maternal-Fetal Medicine Research Center, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, 441000, China.
3 Hubei Provinical Clinical Research Center for Accurate Fetus Malformation Diagnosis, Department of Ultrasound, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, 441000, China. Electronic address: xyyycsgl@163.com.
4 Hubei Provinical Clinical Research Center for Accurate Fetus Malformation Diagnosis, Department of Ultrasound, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, 441000, China. Electronic address: 347235272@qq.com.