Nan, Chong
Ma, Liang
Liang, Yuechuang
Li, Yanjun
Ma, Zhanbei
Article History
Received: 21 September 2022
Accepted: 23 November 2022
First Online: 1 December 2022
Declarations
:
: This study was approved by the Medical Ethics Committee of the Baoding No.1 Central Hospital ([2020]038). All methods were carried out in accordance with relevant guidelines and regulations. The volunteer agreed to the trial protocol and informed consent was obtained from her.
: Not applicable.
: The authors declare that they have no competing interests.