Submitted on: 28 January 2016.
Revised on: 12 April 2016.
Accepted on: 04 June 2016.
___________________Brazilian Journal of Cardiovascular Surgery
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Submitted on: 01 December 2008.
Revised on: 03 January 2009.
Accepted on: 26 February 2009.
___________________Brazilian Journal of Cardiovascular Surgery
Submitted on: 16 May 2010.
Revised on: 04 September 2010.
Accepted on: 14 October 2010.
___________________Brazilian Journal of Cardiovascular Surgery
Submitted on: 06 August 2002.
Revised on: 23 September 2002.
Accepted on: 05 October 2002.
___________________Brazilian Journal of Cardiovascular Surgery
Submitted on: 18 August 2016.
Revised on: 06 October 2016.
Accepted on: 02 December 2016.
___________________Brazilian Journal of Cardiovascular Surgery