Received: 28 May 2020
Accepted: 3 February 2021
First Online: 15 April 2021
Ethics approval and consent to participate
: The present study was approved by the Ethics Committee of Huai’an Hospital of Huai’an City. 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.