Giang, Nguyen Hoang http://orcid.org/0000-0002-4944-2825
Vinh, Nguyen The http://orcid.org/0000-0002-6908-261X
Phuong, Hoang Thi http://orcid.org/0000-0002-9773-8241
Thang, Nguyen Thi
Oanh, Tran Thi Mai http://orcid.org/0000-0003-0823-9668
Funding for this research was provided by:
World Health Organization Centre for Health Development (K18024)
Article History
Received: 16 September 2022
Accepted: 16 September 2022
First Online: 29 November 2022
Declarations
:
: The scientific and ethical aspects of the study were reviewed and approved by the Institutional Scientific Research Committee of the Health Strategy and Policy Institute, Hanoi. Ethical approval was also obtained from the WHO Research Ethics Review Committee (Protocol No. ERC.0003085). Local health authorities issued permission to conduct the field survey in their respective districts and provinces. All respondents were enrolled voluntarily and provided both verbal and written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.