Funding for this research was provided by:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Text and Data Mining valid from 2018-02-02
Received: 18 August 2017
Accepted: 28 December 2017
First Online: 2 February 2018
Ethics approval and consent to participate
: As this study is a retrospective analysis acquired within clinical routine, our local ethics committee waived the need for further approval.
: The authors declare that they have no competing interests.
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