Edefonti, V
Nicolussi, F
Polesel, J
Bravi, F
Bosetti, C
Garavello, W
La Vecchia, C
Bidoli, E
Decarli, A
Serraino, D
Calza, S
Ferraroni, M
Article History
Received: 1 August 2014
Revised: 5 November 2014
Accepted: 13 November 2014
First Online: 9 December 2014
Competing interests
: The authors declare no conflict of interest.