Veličković, N
Ferreira, E http://orcid.org/0000-0003-0497-6118
Djan, M
Ernst, M
Obreht Vidaković, D
Monaco, A
Fonseca, C
Article History
Received: 12 October 2015
Revised: 31 May 2016
Accepted: 8 June 2016
First Online: 20 July 2016
Competing interests
: The authors declare no conflict of interest.