Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (MOST 106-2511-S-039 -002 -MY2; MOST 108-2410-H-182 -011 -SS3)
Text and Data Mining valid from 2019-12-01
Received: 28 December 2018
Accepted: 19 December 2019
First Online: 27 December 2019
Ethics approval and consent to participate
: This study was approved by the Research Ethics Committee of China Medical University and Hospital (CRREC-106-067 & CRREC-106-067 (AR-1)). All participants provided written statements of consent.
: Not applicable.
: Blossom Yen-Ju Lin, is a member of the editorial board (Associate Editor) of BMC Medical Education. All authors declare that they have no competing interests.