Article History
Received: 1 April 2020
Accepted: 11 December 2020
First Online: 3 February 2021
Ethics approval and consent to participate
: The present study was approved by the Ethics Committee of the Second Affiliated Hospital of Guangxi Medical University. The research has been carried out in accordance with the World Medical Association Declaration of Helsinki. All patients provided written informed consent prior to their inclusion within the study.
: Not applicable.
: The authors declare that they have no competing interests.