Article History
Received: 10 March 2020
Accepted: 30 June 2020
First Online: 6 July 2020
Ethics approval and consent to participate
: The study and ethics were both approved by the Kaohsiung Veteran General Hospital’s Institutional Review Board. The data in this study was all anonymised from the Department of Medical Education and Research and Research Center of Medical Informatics in Kaohsiung Veterans General Hospital. This is a retrospective study. Written informed consent from patients was not required.
: Not applicable.
: All authors declare that they have no competing interests.