Funding for this research was provided by:
Taichung Veterans General Hospital (TCVGH-1084102C)
Received: 3 August 2019
Accepted: 30 January 2020
First Online: 7 February 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Taichung Veterans General Hospital Taiwan (IRB number: CF16017A). Given that the research was limited to the secondary use of data previously collected during daily practice and the patients’ identity were completely unidentifiable, the need for informed consent was waived.
: Not applicable.
: On behalf of all authors, the corresponding author states that there are no competing interests.