Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado da Bahia
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (-)
Escola Bahiana de Medicina e Saúde Pública
Text and Data Mining valid from 2018-11-07
Received: 13 June 2018
Accepted: 30 October 2018
First Online: 7 November 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the declaration of Helsinki of 1964 and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.