Lu, Huan
Zheng, Guanlin
Gao, Xiang
Chen, Chanjuan
Zhou, Min
Zhang, Longxin
Article History
Received: 9 November 2020
Accepted: 25 January 2021
First Online: 9 February 2021
Ethics approval and consent to participate
: The present study was approved by the ethical review committee of Fujian provincial maternity and Children’s hospital. Written informed consent was obtained from all enrolled patients.
: Patients agree to participate in this work.
: The authors declare that they have no competing interests.