Funding for this research was provided by:
Graduate School, Kasetsart University
Text and Data Mining valid from 2019-11-06
Received: 4 May 2019
Accepted: 28 October 2019
First Online: 6 November 2019
Compliance with ethical standards
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: The authors declare that the experiments comply with the current laws of the country in which they were carried out.