Lin, Wei
Zhang, Hua-ling
Niu, Zhao-yuan
Wang, Zhen
Kong, Yan
Yang, Xing-sheng
Yuan, Fang https://orcid.org/0000-0002-1144-434X
Funding for this research was provided by:
Department of Health of Shandong Province (2014WS0178)
Article History
Received: 3 August 2019
Accepted: 10 May 2020
First Online: 17 June 2020
Ethics approval and consent to participate
: This research was approved by the ethical committee of The Affiliated Hospital of Qingdao University and the written informed consent for participation in the study was obtained from each subject.
: Not Applicable.
: There are no conflicts of interest to declare.