Kostova, Y
Mantwill, K
Holm, P S
Anton, M
Article History
Received: 23 July 2014
Revised: 18 November 2014
Accepted: 18 November 2014
First Online: 12 December 2014
Competing interests
: PSH is founder and owner of XVir Therapeutics GmbH. The remaining authors declare no conflict of interest.