Funding for this research was provided by:
National Natural Science Foundation of China (31800148, 81730062)
Received: 11 November 2019
Revised: 20 April 2020
Accepted: 24 April 2020
First Online: 11 May 2020
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The clinical section of the research was reviewed and ethically approved by the Institutional Ethics Committee of the First Affiliated Hospital of Nanjing Medical University.
: Written informed consent was obtained from all participants, and all samples were anonymized. All participants were adults.