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Authors
Tangvoraphonkchai, Kamonwan
Davenport, Andrew https://orcid.org/0000-0002-4467-6833
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Article History
Received: 11 July 2018
Accepted: 3 November 2018
First Online: 10 December 2018
Compliance with ethical standards
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: The study was undertaken according to the Helsinki accord, with appropriate informed consent and approvals (National research ethics committee project 129559, and trial registration ISRCTN70556765).
: The authors declare no competing financial interest.
