Funding for this research was provided by:
National Natural Science Foundation of China (81970302, 30400173, 81170180, 30971257)
Received: 21 November 2018
Accepted: 27 January 2020
First Online: 17 February 2020
Ethics approval and consent to participate
: The study was performed in accordance with the protocol approved by the ethics committee of the First Affiliated Hospital of Nanjing Medical University and the Friendship Hospital of Ili Kazakh Autonomous Prefecture in China and all selected subjects signed informed consent.
: Not Applicable.
: The authors declare that they have no competing interests.