Funding for this research was provided by:
Received: 5 June 2018
Accepted: 9 May 2019
First Online: 20 May 2019
Ethics approval and consent to participate
: Human Research Ethics Committees in Australia (University of Tasmania: approval no H001440), and Vietnam (Hue University of Medicine and Pharmacy: approved October 1, 2014) approved this research. Written consent was obtained from all participants prior to interview.
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: The authors declare that they have no competing interests.
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