Funding for this research was provided by:
Mackay Medical College (RD 1050221)
Text and Data Mining valid from 2019-11-22
Received: 21 February 2019
Accepted: 21 October 2019
First Online: 22 November 2019
Compliance with ethical standards
: Institutional Review Board approval of Mackay Memorial Hospital, Taipei, Taiwan (16MMHIS113).
: The authors declare that they have no conflicts of interest.