Sevcenco, S
Mathieu, R
Baltzer, P
Klatte, T
Fajkovic, H
Seitz, C
Karakiewicz, P I
RouprĂȘt, M
Rink, M
Kluth, L
Trinh, Q-D
Loidl, W
Briganti, A
Scherr, D S
Shariat, S F
Article History
Received: 7 July 2015
Revised: 11 September 2015
Accepted: 7 October 2015
First Online: 26 January 2016
Competing interests
: The authors declare no conflict of interest.