Funding for this research was provided by:
National Natural Science Foundation of China (81772298)
Received: 28 December 2019
Accepted: 7 May 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Xiangya Hospital (No. 201703358). Written informed consent was obtained from all patients and controls who participated the experiments and from their legal guardians following the Helsinki Declaration.
: Not applicable.
: The authors declare that they have no competing interests.