Liu, Meijie
Mao, Ning
Ma, Heng
Dong, Jianjun
Zhang, Kun
Che, Kaili
Duan, Shaofeng
Zhang, Xuexi
Shi, Yinghong
Xie, Haizhu http://orcid.org/0000-0002-5962-3558
Article History
Received: 23 December 2019
Accepted: 2 September 2020
First Online: 15 September 2020
Ethics approval and consent to participate
: This study was approved by the medical ethics committee of Yantai Yuhuangding Hospital and all patients signed informed consents.
: Not applicable.
: All authors are in agreement with the content of the manuscript. The manuscript is approved by all authors for publication.