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Authors
Nimmolrat, Acrapol
Khuwuthyakorn, Pattaraporn
Wientong, Purida
Thinnukool, Orawit http://orcid.org/0000-0002-1664-0059
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Funding
Funding for this research was provided by:
National Research Council of Thailand (4820)
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Article History
Received: 12 March 2021
Accepted: 7 July 2021
First Online: 16 July 2021
Declarations
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: Since the research involved the use of human participants, it was conducted in line with author Ref. No. CMUREC No. 60/056 and based on the ethical standards of the Chiang Mai University research ethics committee. The ethics committee approved the study dated 15.02.2018 and. The confidentiality of the data and anonymity of the respondents were maintained. Moreover, the respondents gave their informed consent by verbal because of visual impared unreadable. The purpose of the study was explained and they were assured that their confidentiality would be maintained as; All methods were carried out in accordance with relevant guidelines and regulations. And the informed consent was obtained from all participants or, if participants are under 18, from a parent and/or legal guardian.
: Not applicable.
: All the authors declare that they have no competing interests.
