Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (306478/2012-9 and 309613/2015-9)
Received: 21 August 2017
Accepted: 6 January 2018
First Online: 17 January 2018
Ethics approval and consent to participate
: This research was authorized by the Ethics Committee for Research with Human Beings of the Universidade Federal de Santa Catarina (32,932,414.8.0000.0121) and interviews were done after the residents signed Free Informed Consent Forms.
: Not applicable.
: The authors declare that they have no competing interests.
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