Received: 26 October 2017
Accepted: 16 February 2018
First Online: 21 February 2018
Ethics approval and consent to participate
: All subjects were required to read and sign a consent form before their final selection as subjects. The study protocol was approved by the Local Ethics Committee (Instituto Dante Pazzanese de Cardiologia, São Paulo, Brazil – CAAE:17100213.8.0000.5462) and is in accordance with the Helsinki Declaration principles.
: Not applicable.
: The authors declare that they have no competing interests.
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