Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de Minas Gerais (PPM-00306-08)
Accepted: 11 February 2020
First Online: 18 February 2020
Compliance with ethical standards
: The authors declare 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 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.