Distante, Emanuele http://orcid.org/0000-0001-5728-759X
Farrera, Pau
PadrĂ³n-Brito, Auxiliadora
Paredes-Barato, David
Heinze, Georg http://orcid.org/0000-0001-6361-4876
de Riedmatten, Hugues
Article History
Received: 1 October 2016
Accepted: 18 November 2016
First Online: 19 January 2017
Competing interests
: The authors declare no competing financial interests.