Zhu, Xiaowu
Liu, Linlin
Yixi, Lamu
Yang, Yanan
Zhang, Yan
Yang, Zhen
Chen, Huali
Dong, Jinfeng
Yang, Shouhua
Article History
Received: 23 July 2022
Accepted: 10 November 2022
First Online: 25 November 2022
Declarations
:
: This research study was conducted retrospectively from data obtained for clinical purposes. Ethics approval for this study was obtained from the Ethics Committee of Wuhan Union Hospital (approval number: UHCT-IEC-SOP-016–03-01) and was waived by the Ethics Committee of the Maternal and Child Health Hospital of Shannan city in view of the retrospective nature of the study. All procedures were performed according to the ethical standards of Helsinki Declaration.
: Informed consent requirements were waived from this retrospective study by Ethics Committee, but participating clinicians still provided informed consent for participants in clinical practice.
: Not applicable.
: The authors declare no competing interests.