Funding for this research was provided by:
Natural Science Foundation of Hunan Province (12JJ2055)
China Scholarship Council (201506370173)
National Natural Science Foundation of China (31200739)
Hunan Provincial Science and Technology Department (2018JJ3844)
Science and Technology Department Program of Zhejiang Province (2013C33156)
Text and Data Mining valid from 2019-03-18
Received: 22 August 2018
Accepted: 6 March 2019
First Online: 18 March 2019
Ethics approval and consent to participate
: The procedures were approved by the Ethics Committee of XiangYa Hospital, Central South University, China. The procedure was performed in accordance with the international ethics standards of human trials. Informed consent was obtained from all individual participants included in the study.
: All patients gave their written informed consent for the publication of their identifying photographs.
: The authors declare that they have no competing interests.
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