Received: 23 July 2018
Accepted: 20 November 2018
First Online: 27 November 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee at Hospital Israelita Albert Einstein (Protocol number: 38662314.8.0000.0071). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
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