Zhang, Rui Qin
Xia, Man Cheng
Cui, Fan
Chen, Jia Wei
Bian, Xiao Dong
Xie, Hong Jie
Shuang, Wei Bing
Article History
Received: 28 October 2020
Accepted: 12 April 2021
First Online: 22 April 2021
Declarations
:
: We confirmed that all methods were performed in accordance with the relevant guidelines and regulations. All female included in the study gave informed consent and signed an informed consent form. This study was approved by the Ethics Committee of First Hospital of Shanxi Medical University.
: Not applicable.
: We have no competing interest.