Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (MOST104-2314-B-040-001, NSC103-2420-H-040-002, MOST106-2221-E-182-079, MOST107-2221-E-182-054-MY3)
Chang Gung University (BMRPD1H0101, BMRPD1G1321)
Chang Gung Memorial Hospital (CORPG6G0121, CORPG6G0101)
Text and Data Mining valid from 2018-12-01
Received: 14 June 2018
Accepted: 20 November 2018
First Online: 4 December 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board at Taichung Veterans General Hospital. The review number was SF14185A. All participants provided written informed consent before the examination.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.