Received: 10 May 2018
Accepted: 17 July 2018
First Online: 13 August 2018
Ethics approval and consent to participate
: The Research Ethics Committee of the Brazilian Ministry of Health approved this study (CAAE: 35440114.0.0000.0008). The participants the focus group and semi-structured interviews signed a Consent Form, authorizing confidentiality, data collection and publication anonymously.
: Not applicable.
: The authors declare that they have no competing interests.
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