Funding for this research was provided by:
National Major Science and Technology Projects of China (2017ZX09304016, 2017ZX10302201004008)
Received: 28 June 2019
Accepted: 5 April 2020
First Online: 21 April 2020
Ethics approval and consent to participate
: The study was approved by the clinical research ethics committee of Nanfang Hospital of Southern Medical University. Written informed consent was obtained by all of the participants.
: Not applicable.
: The authors declare that they have no competing interests.