Funding for this research was provided by:
National Natural Science Foundation of China (81602397)
Natural Science Foundation of Shanghai (15ZR1405700)
Text and Data Mining valid from 2018-05-21
Received: 22 November 2017
Accepted: 9 May 2018
First Online: 21 May 2018
Ethics approval and consent to participate
: The study was conducted in accordance with the Helsinki Declaration and received approval from the ethical review board of Anhui Medical University (approval no. 8151101031). Informed written consent from the patients or their legal representatives was obtained prior to inclusion to the study.
: The authors declare that they have no competing interests.
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