Funding for this research was provided by:
science foundation of Guangdong Second Provincial General Hospital (NO. YY2018005)
Received: 24 April 2020
Accepted: 20 October 2020
First Online: 28 October 2020
Ethics approval and consent to participate
: Medical Ethical Committee of Guangdong Second Provincial General Hospital and Nanfang Hospital has approved the research ethics approval. All included patients consented to participate in this study and a signed consent form was obtained from each subject before testing. All procedures were conducted according to the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.