Funding for this research was provided by:
the National Natural Science Foundation of China (81373118)
Basic and Clinical Research Projects of Technology Innovation Development Foundation in Tangdu Hospital (2015LCYJ017, 2016JCYJ001)
the Technology Development Foundation of the Fourth Military Medical University (2016XD252)
the National Basic Research Program of China (2012CB518905)
Received: 10 September 2017
Accepted: 21 February 2018
First Online: 1 March 2018
Availability of data and materials
: Data contains personal information. The data will not be made available in order to protect the participants’ identity.
: The study was approved by the Institutional Review Board of Tangdu Hospital. Before inclusion, the patients were informed about the objectives of this study, and they or their direct relatives agreed and signed the informed consent form before inclusion.
: Not applicable.
: The authors declare that they have no competing interests.
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