Gonçalves, Isabel
Andersson Georgiadou, Elisavet
Mattsson, Sören
Skog, Göran
Pedro, Luís
Fernandes e Fernandes, José
Dias, Nuno
Engström, Gunnar
Nilsson, Jan
Stenström, Kristina
Article History
Received: 7 April 2015
Accepted: 23 September 2015
First Online: 22 October 2015
Competing interests
: The authors declare no competing financial interests.