1. Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China.
2. Department of Obstetrics and Gynecology, Northwest Women’s and Children’s Hospital, Xi’an, China.
3. National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China.
4. Shaanxi Provincial Key Laboratory of Magnetic Medicine, Xi’an, China.