Zhang, Shuyi
Liu, Zhengpeng
Lu, Chenshui
Zhao, Li
Feng, Chao
Wang, Yahui
Zhang, Yilong
Article History
Received: 18 October 2021
Accepted: 24 February 2022
First Online: 4 March 2022
Declarations
:
: The present study was approved by the Ethics Committee of the Affiliated Hospital of Chengde Medical College. Informed consent obtained from each participant was written. All protocols are carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no conflict of interest.