Thomsen, Hauke
da Silva Filho, Miguel Inacio
Försti, Asta
Fuchs, Michael
Ponader, Sabine
von Strandmann, Elke Pogge
Eisele, Lewin
Herms, Stefan
Hofmann, Per
Sundquist, Jan
Engert, Andreas
Hemminki, Kari
Article History
Received: 31 December 2013
Revised: 6 August 2014
Accepted: 10 August 2014
First Online: 17 September 2014
Competing interests
: The authors declare no conflict of interest.