Listing, H
Mardin, W A
Wohlfromm, S
Mees, S T
Haier, J
Article History
Received: 19 March 2014
Revised: 19 September 2014
Accepted: 22 October 2014
First Online: 25 November 2014
Competing interests
: SW is employed at arrows biomedical Deutschland GmbH, a company that distributes molecular biology services. The remaining authors declare no conflict of interest.