Alexander, N
Wankerl, M
Hennig, J
Miller, R http://orcid.org/0000-0002-8665-5248
Zänkert, S
Steudte-Schmiedgen, S
Stalder, T
Kirschbaum, C
Article History
Received: 22 July 2014
Accepted: 25 July 2014
First Online: 16 September 2014
Competing interests
: The authors declare no conflict of interest.