Funding for this research was provided by:
scientific research projects of health industry in hainan province (No. 20A200223)
Received: 27 May 2021
Accepted: 15 July 2021
First Online: 3 August 2021
: This study was conducted in accordance with the Declaration of Helsinki and approved by the ethics committee of our hospital. All the participants had signed the informed consent.
: Not applicable.
: All the authors had no any personal, financial, commercial, or academic conflicts of interest separately.