Kothe, R.
Schmeiser, G.
Papavero, L.
Article History
Received: 16 December 2016
Revised: 17 August 2017
Accepted: 6 September 2017
First Online: 12 January 2018
Compliance with ethical guidelines
:
: L. Papavero is a consultant for Medicon e. G., Tuttlingen, Germany. R. Kothe and G. Schmeiser declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.