Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado do Amazonas
Received: 2 August 2017
Accepted: 2 March 2018
First Online: 15 March 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the Adriano Jorge Foundation Hospital, under protocol number 1162956, on July 7 2015. The institutional review board waived the need for written informed consent from participants as the study involved only secondary data and the confidentiality of the patients’ identities was protected.
: Not applicable.
: The authors declare that they have no competing interests.
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