Luu, Tuan Trong
Vo, Thao Thanh
Article History
Received: 13 March 2020
Accepted: 28 October 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: The Public Health Research Ethics Committee of University of Economics Ho Chi Minh City approved the study. We confirm that the consent we obtained from study participants (i.e., medical students) was verbal since their voluntary participation in surveys and observations reflected their consent.
: Not applicable.
: The authors declare that they have no competing interests.