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Authors
Jirakittidul, Preeyaporn
Panichyawat, Nalinee https://orcid.org/0000-0002-9058-4905
Chotrungrote, Benjaphorn
Mala, Athitaya
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Article History
Received: 30 October 2018
Accepted: 22 July 2019
First Online: 31 July 2019
Ethics approval and consent to participate
: The protocol for this study was approved by the Siriraj Institutional Review Board (COA no. Si 386/2014). This study complied with the principles set forth in the Declaration of Helsinki (1964) and all of its subsequent amendments, and written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
