Polónia, J
Carvalho, D
Nazaré, J
Martins, L
da Silva, P M
Aguiar, C
Manso, M C
Carqueja, T
Article History
Received: 24 February 2015
Revised: 22 October 2015
Accepted: 3 November 2015
First Online: 7 January 2016
Competing interests
: TC is employed in Novartis Farma Produtos Farmacêuticos SA. The remaining authors declare no conflict of interest.