Fernandes, L M P
Bezerra, F R
Monteiro, M C
Silva, M L
de Oliveira, F R
Lima, R R
Fontes-Júnior, E A
Maia, C S F
Article History
Received: 26 July 2016
Revised: 14 November 2016
Accepted: 3 December 2016
First Online: 22 February 2017
Competing interests
: The authors declare no conflict of interest.