Sutham, Krongkarn
Khuwuthyakorn, Pattaraporn
Thinnukool, Orawit http://orcid.org/0000-0002-1664-0059
Funding for this research was provided by:
Thailand Science Research and Innovation (MRG62)
Article History
Received: 7 June 2019
Accepted: 19 March 2020
First Online: 9 April 2020
Ethics approval and consent to participate
: Ethical clearance and approval were obtained from the Chiang Mai University Research Ethic Committee with exemption (REC-25620711-17045). The respondents all signed a consent form, which contained details of the purpose of the study and they were assured of their anonymity, as well as the confidentiality of the data they provided .
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: The authors declare that they have no competing interests.