Funding for this research was provided by:
National Natural Sciences Foundation of China (81502098)
National Natural Sciences Foundation of Hunan province (2016JJ3159)
Received: 7 November 2018
Accepted: 15 February 2019
First Online: 4 March 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Xiangya hospital. The written consent to publish this information has been obtained from the study patient.
: A written informed consent has been obtained from the individual patient.
: All authors read and approved the final manuscript. The authors declare that they have no competing interests.
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