Peng, Haibo
Shi, Yanling
Wang, Fei
Jin, Zhenchao
Li, Cungui
Kang, Jing
Zhang, Guofei
Zhang, Lian
Yao, Yanli
Yu, Zhangbin
Article History
Received: 16 February 2022
Revised: 12 September 2022
Accepted: 22 September 2022
First Online: 21 October 2022
Declarations
:
: The study was approved by the Qinghai Red Cross Hospital Ethics Committee(KY-2021-29) and Shenzhen Baoan Women’s and Children’s Hospital Ethics Committee(LLSC-2021-03-9-07-KS). Informed consent was waived by ethics committee of both hospitals because this study was a retrospective analysis of clinical data. Anonymity was maintained by using the identified number instead of the patient’s names. All methods were performed in accordance with the ethical guidelines.
: Not applicable.
: The authors declare that they have no competing interests.