Feng, Yan
Qu, Xin
Chen, Yu
Feng, Qi
Zhang, Yinghong
Hu, Jianwei
Li, Xiaoyan
Funding for this research was provided by:
Yantai Science and Technology Innovation Development Plan Project (2020YD028)
Article History
Received: 27 March 2020
Accepted: 25 May 2020
First Online: 6 June 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Yuhuangding Hospital Affiliated to Qingdao University.
: All of the authors have consented to publication of this research.
: The authors declare that they have no competing interests.