Le, Tuan Anh
Nguyen, Tuan Anh
Dang, Anh Duc
Nguyen, Cuong Tat
Phan, Hai Thanh
Vu, Giang Thu
Nguyen, Trang Huyen Thi
Latkin, Carl A.
Ho, Cyrus S. H.
Ho, Roger C. M.
Tran, Bach Xuan
Ying, Jiangbo
Zhang, Melvyn W. B.
Article History
Received: 29 May 2019
Accepted: 27 December 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: The study protocol was reviewed and granted ethics approval by the Institutional Review Board of National Institute of Hygiene and Epidemiology.
: Not applicable.
: The authors declare that they have no competing interests.