Mehdad, A
Brumana, G
Souza, AA
Barbosa, JARG
Ventura, MM
de Freitas, SM
Article History
Received: 21 September 2015
Revised: 19 November 2015
Accepted: 3 December 2015
First Online: 21 March 2016
Competing interests
: The authors declare no conflict of interest.