Funding for this research was provided by:
National Natural Science Foundation of China (81500890)
Received: 25 May 2019
Accepted: 21 September 2019
First Online: 1 October 2019
Ethics approval and consent to participate
: The study was approved Research Ethics Committee Affiliated Zhong Shan Hospital of Dalian University, and informed consent were obtained from all patients (No. 2017046).
: All the authors agree to publish the research.
: The authors declare that they have no competing interests.