Received: 29 June 2021
Accepted: 17 September 2021
First Online: 23 September 2021
: The study protocol was approved by the Ethics Committee of Dongyang Hospital affiliated to Wenzhou Medical University (Number 2021-YX-035).The requirement for consent was waived, because the study was a retrospective study and all data were anonymized prior to analysis.
: All patients provided written consent for use of their data for research purposes, and specifically, for publication of this manuscript.
: Authors declare that they have no competing interests.