Funding for this research was provided by:
Ministry of Science and Technology (106-2410-H-431 -018 -)
Text and Data Mining valid from 2019-11-28
Received: 3 May 2019
Accepted: 22 November 2019
First Online: 28 November 2019
Compliance with ethical standards
: All authors declare that they have no conflict of interest.
: The research does not have any studies with human subjects or animals performed by any of the authors.
: All participants were informed ethical principles in advance and agreed to participate this study.