Article History
Received: 24 February 2022
Accepted: 4 July 2022
First Online: 14 July 2022
Declarations
:
: The authors have no relevant financial or non-financial interests to disclose.
: This retrospective study was approved by the Affiliated Hospital of Shaanxi University of Chinese Medicine Institutional Ethics Committee (the approval document no.: SZFYIEC-PF-2019 no. []), and the consents from patients were waived.