Pengpid, Supa
Vonglokham, Manithong
Kounnavong, Sengchanh
Sychareun, Vanphanom
Peltzer, Karl http://orcid.org/0000-0002-5980-0876
Funding for this research was provided by:
World Health Organization
Article History
Received: 6 July 2018
Accepted: 22 August 2018
First Online: 17 September 2018
Compliance with ethical standards
:
: The authors have no conflict of interests to disclose.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all participants (literate and illiterate) prior to the study.