Funding for this research was provided by:
Natural Science Foundation of Liaoning Province (NO.20180530026)
Article History
Received: 5 December 2018
Accepted: 14 January 2019
First Online: 28 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the Ethics Committee of China Medical University, and all procedures performed in studies involving human participants were in accordance with the ethical standards published in the 1964 Helsinki Declaration and its later amendments.
: All individual participants included in this study were provided with written informed consent.