Funding for this research was provided by:
National Natural Science Foundation of China (81872334)
Text and Data Mining valid from 2019-08-12
Received: 10 June 2019
Accepted: 1 August 2019
First Online: 12 August 2019
Compliance with Ethical Standards
: The authors declare no competing interests.
: All of the procedures in the present study, including the use of specimens from human subjects, were approved with the written informed consent of the all participants and/or their legal guardians, according to the guidelines of the Shantou University Medical College Ethic Committee.
: Written informed consent was obtained from the patients for publication.