Funding for this research was provided by:
National Science and Technology Development Agency (Research Chair grant)
National Research Council of Thailand (Senior Research Scholar grant)
Chiang Mai University (Center of Excellence Award)
Article History
Received: 26 August 2020
Accepted: 14 October 2020
First Online: 20 October 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.