Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (MOST 105-2314-B-006-069, MOST 106-2314-B-006-003, MOST 107-2314-B-006-003)
Article History
Received: 16 August 2019
Accepted: 17 October 2019
First Online: 1 November 2019
Ethics approval and consent to participate
: The study protocol was reviewed and approved by the Institutional Review Board of National Cheng Kung University Hospital, Tainan, Taiwan (B-ER-107-228).
: Not applicable.
: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.