Funding for this research was provided by:
National Natural Science Foundation of China (81471295, 81671075, 81701134)
National Key Plan for Scientific Research and Development of China (2016YFC1306000)
Xiangya Hospital Youth Scientific Research Fund (2016Q01)
Received: 5 July 2018
Accepted: 23 October 2018
First Online: 4 December 2018
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Xiangya Hospital of the Central South University in China (equivalent to an Institutional Review Board). Written informed consent was obtained from each participant.
: Not applicable.
: The authors report no actual or potential conflicts of interest.