Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (MOST 105-2314-B-182A-138)
Chang Gung Memorial Hospital, Linkou (CMRPG3F1852)
Text and Data Mining valid from 2020-01-03
Received: 6 August 2019
Accepted: 19 December 2019
First Online: 3 January 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Reviewing Board of Chang Gung Memorial Hospital.
: Not available.
: The authors declare that they have no competing interests.