Tan, Yu
Mai, Hui
Huang, Zhiqing
Zhang, Li
Li, Chengwei
Wu, Songxin
Huang, Huang
Tang, Wen
Liu, Yongxi
Jiang, Kuiming http://orcid.org/0000-0002-5924-1525
Funding for this research was provided by:
the Third Affiliated Hospital of Guangzhou Medical University Youth Research Project (2017Q07)
Article History
Received: 9 October 2020
Accepted: 21 February 2021
First Online: 12 March 2021
Ethics approval and consent to participate
: This retrospective study was approved by the ethics committee of o Guangdong Women and children hospital. The requirement of signed patient informed consent was waived owing to the retrospective nature of this study.
: Not applicable.
: All authors declare that they have no competing interests.