Lisboa, Thiago
Salluh, Jorge
Povoa, Pedro
Article History
Received: 22 December 2017
Accepted: 9 January 2018
First Online: 27 January 2018
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.