Gu, Chongjuan
He, Yaojuan
Li, Xiaojun
Li, Qingfeng
Xuan, Qingshan
Li, Kuanrong
Funding for this research was provided by:
the Guangzhou Women and Children’s Medical Center, Guangzhou, China. (1600067-04)
Article History
Received: 17 August 2021
Accepted: 28 August 2022
First Online: 14 September 2022
Declarations
:
: All listed authors declare that they have no conflict of interest.
: The study was approved by the Ethical Committee of the Guangzhou Women and Children’s Medical Center. (2020–15001). All methods were carried out in accordance with relevant guidelines and regulations. Ethics approval and consent to participate was waived by the Ethics Committee of Guangzhou Women and Children’s Medical Center due to the retrospective nature of the study.