De, Inessa
Bessonov, Sergey
Hofele, Romina
dos Santos, Karine
Will, Cindy L
Urlaub, Henning
Lührmann, Reinhard
Pena, Vladimir
Article History
Received: 22 July 2014
Accepted: 11 December 2014
First Online: 19 January 2015
Competing interests
: The authors declare no competing financial interests.