Testa, A
Kaijser, J
Wynants, L
Fischerova, D
Van Holsbeke, C
Franchi, D
Savelli, L
Epstein, E
Czekierdowski, A
Guerriero, S
Fruscio, R
Leone, F P G
Vergote, I
Bourne, T
Valentin, L
Van Calster, B
Timmerman, D
Article History
Received: 9 February 2014
Revised: 12 May 2014
Accepted: 14 May 2014
First Online: 17 June 2014
Competing interests
: The authors declare no conflict of interest.