Funding for this research was provided by:
Guangdong Medical Research Foundation (A2017007)
Received: 19 August 2020
Accepted: 12 November 2020
First Online: 19 November 2020
Ethics approval and consent to participate
: This study is exempt from the need for informed consent according to China's "Ethical Review Approaches for Biomedical Research Involving Humans" 2016, Article 39(1) [CitationRef removed]. The study was approved by the ethics committee of the First affiliated hospital of Jinan University and was conducted in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors have no conflicts of interest to declare.