Received: 21 August 2019
Accepted: 26 January 2020
First Online: 11 February 2020
Ethics approval and consent to participate
: This trial was approved by a Committee for Ethics in Research involving human subjects from Ribeirão Preto School of Medicine. Upon inclusion, all patients or legal surrogates provided written informed consent in accordance with the Declaration of Helsinki II.
: All authors of the manuscript have read and agreed to its content and are accountable for all aspects of the accuracy and integrity of the manuscript in accordance with ICMJE criteria. The article is original, has not already been published in a journal, and is not currently under consideration by another journal. We agree to the terms of the SpringerOpen Copyright and License Agreement.
: The authors declare that they have no competing interests.