Dang, Truc Ngoc Hoang https://orcid.org/0000-0001-5466-7140
Sukontamarn, Pataporn https://orcid.org/0000-0003-4110-9697
Article History
Accepted: 31 January 2023
First Online: 13 February 2023
Declarations
:
: The authors declare that there is no conflict of interest.
: The Vietnam Aging Survey 2011 was approved by the Research Council of the Institute of Social and Medical Studies, authorized by the American Medical Board.