Received: 25 February 2019
Accepted: 23 May 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: Research permission was granted by the National Ethics Committee for Health Research (n°297/NECHR). Prior informed consent was obtained from all parties involved in research through a verbal explanation of the research purpose, methods of data collection, and knowledge dissemination.
: Not applicable.
: The authors declare that they have no competing interests.
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