Liu, Hui
Liu, Yuwei
Huang, Kun
Yan, Shuangqin
Hao, Jiahu
Zhu, Peng
Tao, Fangbiao
Shao, Shanshan
Article History
Received: 2 October 2021
Accepted: 8 October 2021
First Online: 29 October 2021
Declarations
:
: This study have been performed in accordance with the Declaration of Helsinki and approved by the ethics committee of Anhui Medical University (Reference number: 20180084) and written informed consent was obtained from each pregnant woman.
: Not applicable.
: We that the authors have no competing interests as defined by BMC, or other interests that might be perceived to influence the results and/or discussion reported in this paper.