Funding for this research was provided by:
Ministry of Science and Technology (MOST 106-2627-M-006-008)
Article History
Received: 2 April 2019
Accepted: 3 October 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: This study was reviewed by the Institutional Review Boards of National Cheng Kung University Hospital, and ethical review was exempted because of the use of open data.
: Not applicable.
: The authors declare that they have no competing interests.