Article History
Received: 11 January 2022
Accepted: 14 February 2022
First Online: 22 March 2022
Declarations
:
: The authors declare that they have no financial interests.
: The protocol of the study was reviewed and approved by the institutional review board of Taichung Veterans General Hospital as a minimal-risk retrospective study (approval no. CE20227A).
: The institutional review board of Taichung Veterans General Hospital regarded the study as a minimal-risk retrospective study and a waiver of informed consent was obtained.