Text and Data Mining valid from 2019-01-06
Received: 20 November 2018
Accepted: 20 December 2018
First Online: 6 January 2019
Ethics approval and consent to participate
: The study was approved by the local research ethics committee at the Federal University of São Paulo (no. 503,630). All patients gave their informed consent prior to their inclusion in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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