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Submitted on: 11 May 2012.
Revised on: 29 May 2012.
Accepted on: 21 June 2012.
Revista da Associacao Medica Brasileira
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Submitted on: 12 May 2015.
Revised on: 06 June 2015.
Accepted on: 20 June 2015.
Revista da Associacao Medica Brasileira
Submitted on: 12 September 2008.
Revised on: 10 October 2008.
Accepted on: 24 October 2008.
Revista da Associacao Medica Brasileira
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Submitted on: 20 May 2017.
Revised on: 28 May 2017.
Accepted on: 09 June 2017.
Revista da Associacao Medica Brasileira
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