Funding for this research was provided by:
the new strategic research (P2P) project, Walailak University
Text and Data Mining valid from 2019-10-15
Received: 15 March 2019
Accepted: 13 September 2019
First Online: 15 October 2019
Ethics approval and consent to participate
: Protocol of this study was approved by the Ethical Clearance Committee on Human Rights Related to Researches Involving Human Subjects of Walailak University, Thailand (EC number WUEC-18-145-01).
: Not applicable.
: The authors declare that they have no competing interest.