Received: 27 July 2018
Accepted: 12 October 2018
First Online: 18 February 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Messejana Heart and Lung Hospital under control number CAAE 65315317.0.0000.5039.
: Not applicable.
: The authors declared that they have no competing interests.
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