Burbulla, L F
Fitzgerald, J C
Stegen, K
Westermeier, J
Thost, A-K
Kato, H
Mokranjac, D
Sauerwald, J
Martins, L M
Woitalla, D
Rapaport, D
Riess, O
Proikas-Cezanne, T
Rasse, T M
Krüger, R
Article History
Received: 16 July 2013
Revised: 30 January 2014
Accepted: 14 February 2014
First Online: 17 April 2014
Competing interests
: The authors declare no conflict of interest.