Received: 5 October 2020
Accepted: 11 January 2021
First Online: 22 January 2021
Ethics approval and consent to participate
: The consent of study participant was waived and the study protocol was proved by Taichung Veterans General Hospital’s Institutional Review Board (IRB-CE20008B).
: Not applicable.
: No authors of this study have any financial and personal relationships with other people or organizations, which could result in an inappropriate influence of this study.