Funding for this research was provided by:
National Natural Science Foundation of China (81650011)
Liaoning Provincial Science and Technology Program (2015020461)
Received: 28 July 2017
Revised: 4 December 2017
Accepted: 1 February 2018
First Online: 26 February 2018
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Shengjing Hospital affiliated to China Medical University (2017PS330K) and has been performed in accordance with the principles of the Declaration of Helsinki.
: Not applicable.
: None declared.
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