Guo, Hua http://orcid.org/0000-0003-4474-8507
Ha, Chunfang
Dong, Hui
Yang, Zhijuan
Ma, Yuan
Ding, Yonghui
Funding for this research was provided by:
the Ningxia Science and Technology Huimin Project (No. 2018CMG03001)
Ningxia Hui Autonomous Region Key R&D Project (2019BFG02002)
Open subject of obstetrics and gynecology in Ningxia Medical University General Hospital
Article History
Received: 19 September 2019
Accepted: 27 November 2019
First Online: 21 December 2019
Ethics approval and consent to participate
: The present study protocols had been approved by General Hospital of Ningxia Medical University. All participating patients signed informed consent prior to the study. All protocols were conducted based on the ethics statement of the <i>Helsinki Declaration</i>. The animal experiments were carried out strictly following the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health.
: Consent for publication was obtained from the participants.
: The authors declare that they have no competing interests.