Du, Wei
Sun, Tao
Ding, Yan
Jiang, Chuanqiang
Qu, Wenqing
Zhang, Shudong
Funding for this research was provided by:
The National key research and development program of the ministry of science and technology of the People’s Republic of China (2017YFC0110600)
Article History
Received: 1 October 2019
Accepted: 4 March 2020
First Online: 21 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (the Ethics Committee of Yantaishan Hospital in Yantai City) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.