Nguyen, Phong Thanh http://orcid.org/0000-0002-6180-2520
Nguyen, Luan Thanh http://orcid.org/0000-0002-2247-3226
Nguyen, Vu Mau
Article History
Received: 23 October 2023
Accepted: 1 August 2024
First Online: 22 August 2024
Competing interests
: The authors declare 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. The study was approved by the Ethical Committee of the Vietnam National Foundation for Science and Technology Development (NAFOSTED) on 15 April 2020 (Ref. No. 503.99-2020.04).
: We informed each participant of the participant information statement, their rights to withdraw from the study, their voluntary participation and their personal information treated with confidentiality during the recruitment. We had obtained their full consent before we conducted the interviews for data collection.