Funding for this research was provided by:
Qinglan Project of Jiangsu Province of China (2019)
Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
National Key R&D Program of China (2017YFC0907000)
Received: 2 October 2020
Accepted: 31 January 2021
First Online: 9 February 2021
Ethics approval and consent to participate
: This study was approved by the ethics committee of Nanjing Medical University. Written informed consent was obtained from study participants. The study was conducted in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.