Funding for this research was provided by:
National Natural Science Foundation of China (81671469, 81370717)
National Key Research and Development Program (2016YFC1000505)
National Basic Research Program of China (2013CB945402)
Received: 26 April 2018
Accepted: 20 December 2018
First Online: 1 February 2019
Ethics approval and consent to participate
: This study was approved by the Medical Ethics Committee of Shengjing Hospital, China Medical University (2015PS264K). Informed consent is not applicable in this study.
: Not applicable.
: The authors declare that they have no competing interests.
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