Le, Tuan Anh
Ha, Giang Hai
Le, Mai Quynh Thi
Tran, Lien My Hoang
Pham, Duyen Thanh Thi
Tran, Ninh Hai Thi
Vu, Giang Thu
Nguyen, Long Hoang
Pham, Hai Quang
Nguyen, Cuong Tat
Tran, Tung Hoang
Pham, Kiet Tuan Huy
Tran, Bach Xuan
Latkin, Carl A.
Ho, Cyrus S. H.
Ho, Roger C. M.
Article History
Received: 3 December 2019
Accepted: 8 April 2020
First Online: 28 April 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 (code: 726/QDVSDTTU).
: Not applicable.
: The authors declare that they have no competing interests.