Funding for this research was provided by:
Kakenhi, Grant-in-Aid for Research Activity start-up of Japan (17H07121)
Text and Data Mining valid from 2018-06-25
Received: 18 May 2018
Accepted: 19 June 2018
First Online: 25 June 2018
Ethics approval and consent to participate
: This study has been approved by the institutional review board of Teikyo university (No. 17–034) and the Lao national research ethics committee (No. 2017.62.MP).Written informed consent will be obtained from all participants (Additional file InternalRef removed). For any participants under 20 years of age, we also plan to obtain consent from their parents or legal guardians.
: Not applicable.
: The authors declare that they have no competing interests.
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