Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (MOST 105-2628-B-010-015-MY3)
Taipei Veterans General Hospital (V107C-081)
Taipei Veterans General Hospital-National Yang-Ming University Excellent Physician Scientists Cultivation Program (106-V-B-027)
Received: 24 August 2018
Accepted: 25 October 2018
First Online: 3 January 2019
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of Taipei Veterans General Hospital (protocol number 2016–05-009CC). No written informed consent was acquired due to the retrospective nature of the study and the information was de-linked.
: Not applicable.
: The authors declare that they have no competing interests.
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