Tran, Bach Xuan http://orcid.org/0000-0002-5741-383X
Nguyen, Quang Nhat
Nguyen, Long Hoang
Nguyen, Cuong Tat
Do, Huyen Phuc
Truong, Nu Thi
Latkin, Carl A.
Article History
First Online: 24 June 2019
Compliance with Ethical Standards
:
: The authors declare that they have no competing interests.
: 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 individual participants included in the study.