Brazilian Journal of Medical and Biological Research, Volume: 51, Issue: 2, Article number: e6808, Published: 11 DEC 2017 Brazilian Journal of Medical and Biological Research v.51 n.2 2018 Brazilian Journal of Medical and Biological Research Associação Brasileira de Divulgação Científica (ABDC) instacron:ABDC Brazilian Journal of Medical and Biological Research, Vol 51, Iss 2 (2017)