Rotgers, E
Rivero-Müller, A
Nurmio, M
Parvinen, M
Guillou, F
Huhtaniemi, I
Kotaja, N
Bourguiba-Hachemi, S
Toppari, J
Article History
Received: 18 February 2014
Revised: 8 April 2014
Accepted: 9 April 2014
First Online: 5 June 2014
Competing interests
: The authors declare no conflict of interest.