Li, Wenjing
Peng, Lanbo
Yang, Chao
Chen, Guangmin
Article History
Received: 29 September 2020
Accepted: 22 February 2021
First Online: 9 March 2021
Ethics approval and consent to participate
: This study design was approved and supported by the Ethical Committee of The Second People’s Hospital of Liaocheng, and each participant signed written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.