Simão, D
Pinto, C
Fernandes, P
Peddie, C J
Piersanti, S
Collinson, L M
Salinas, S
Saggio, I
Schiavo, G
Kremer, E J
Brito, C
Alves, P M
Article History
Received: 7 April 2015
Revised: 23 June 2015
Accepted: 8 July 2015
First Online: 20 August 2015
Competing interests
: The authors declare no conflict of interest.