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Authors
Vu, Thi Hoang Lan
Bui, Thi Tu Quyen
Nguyen, Thi Kim Ngan
Hoang, Van Minh
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Article History
Received: 14 October 2019
Accepted: 13 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: This paper was based on secondary data from the STEPs 2015 with all identifying information removed. All procedures performed in STEPS2015 involving human participants were in accordance with the ethical standards of The Ethical Review Board for Biomedical Research Hanoi University of Public Health. All information on the original dataset was collected confidentially.
: Not applicable.
: The authors declare that they have no competing interests.
