Funding for this research was provided by:
the National Natural Science Foundation of China (31300103, 31371373, 31771572)
the Nature Science Foundation of Jiangsu Province (BK20151395)
the Fundamental Research Funds for the Central Universities (021414380330)
the Open Fund of State Key Laboratory of Natural Medicines (SKLNMKF201606)
Research of Institute of hospital management Nanjing University (NDYG2017016)
the Innovation Capability Development Project of Jiangsu Province (BM2015004)
Received: 13 July 2018
Accepted: 25 September 2018
First Online: 3 October 2018
Ethics approval and consent to participate
: Written informed consent was obtained from all subjects before surgery, and this study was approved by the Ethics Committee of the Affiliated Drum Tower Hospital of the Medical School of Nanjing University.
: Not applicable.
: The authors declare that they have no competing interests.
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