Brazilian Journal of Cardiovascular Surgery, Volume: 33, Issue: 6, Pages: 559-566, Published: DEC 2018 Brazilian Journal of Cardiovascular Surgery v.33 n.6 2018 Brazilian Journal of Cardiovascular Surgery Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV) instacron:SBCCV Brazilian Journal of Cardiovascular Surgery, Vol 33, Iss 6, Pp 559-566