León Félix, L.
Coaquira, J. A. H.
Martínez, M. A. R.
Goya, G. F.
Mantilla, J.
Sousa, M. H.
Valladares, L. de los Santos
Barnes, C. H. W.
Morais, P. C.
Article History
Received: 6 September 2016
Accepted: 29 December 2016
First Online: 6 February 2017
Competing interests
: The authors declare no competing financial interests.