Melé, Enric
Nadal, Anna
Messeguer, Joaquima
Melé-Messeguer, Marina
Palaudelmàs, Montserrat
Peñas, Gisela
Piferrer, Xavier
Capellades, Gemma
Serra, Joan
Pla, Maria
Article History
Received: 2 July 2015
Accepted: 26 October 2015
First Online: 24 November 2015
Competing interests
: The authors declare no competing financial interests.