Funding for this research was provided by:
National Nature Science Foundation of China (No. 81773510)
Nature Science Foundation of Liaoning Province (No. 20170541048)
National Key R&D Program of China (Grant #2017YFC1307600)
Received: 31 January 2019
Accepted: 8 March 2019
First Online: 25 March 2019
Ethics approval and consent to participate
: The Ethics Committee of China Medical University has approved the research plan and written informed consent has been formally obtained from all patients or their guardians.
: Not applicable.
: The authors declare that they have no competing interests.
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