Tran, Bach Xuan
Nguyen, Long Hoang
Turner, Hugo C.
Nghiem, Son
Vu, Giang Thu
Nguyen, Cuong Tat
Latkin, Carl A.
Ho, Cyrus S. H.
Ho, Roger C. M.
Article History
Received: 12 April 2019
Accepted: 7 October 2019
First Online: 14 November 2019
Ethics approval and consent to participate
: Not applicable
: Not applicable
: The authors declare that they have no competing interests. Bach Tran is a member of the editorial board of BMC Health Services Research. HCT is supported by the Wellcome Trust [089276/B/09/7].