Schreck, I
Grico, N
Hansjosten, I
Marquardt, C
Bormann, S
Seidel, A
Kvietkova, D L
Pieniazek, D
Segerbäck, D
Diabaté, S
van der Horst, G T J
Oesch-Bartlomowicz, B
Oesch, F
Weiss, C
Article History
Received: 11 April 2014
Revised: 20 February 2015
Accepted: 20 March 2015
First Online: 18 May 2015
Competing interests
: The authors declare no conflict of interest.