Chang, Jing
Yu, Yanming
Fang, Zhan
He, Haiyan
Wang, Dan
Teng, Jian
Yang, Lina
Article History
Received: 17 August 2020
Accepted: 23 November 2020
First Online: 9 December 2020
Ethics approval and consent to participate
: The research was approved by the Ethics Committee of Yantaishan Hospital. Each participant signed a written informed consent before collecting blood samples.
: Not applicable.
: The authors declare that they have no financial conflicts of interest.