Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado da Bahia (000)
Received: 17 April 2019
Accepted: 6 September 2019
First Online: 23 September 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board (IRB) under the protocol number: 081/2009 (CAE 0086.0.059.000. -09). Participants signed the informed consent form before being interviewed.
: Not applicable.
: The authors declare that they have no competing interests.