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Funding
Funding for this research was provided by:
Key Program of National Natural Science Foundation of China (81330033)
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Article History
Received: 1 November 2018
Accepted: 15 February 2019
First Online: 26 February 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Review Committee of the Second Affiliated Hospital of Harbin Medical University, Harbin, China. All patients provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
