Renninger, Markus
Fahmy, Omar
Schubert, Tina
Schmid, Manuel Alexander
Hassan, Fahmy
Stenzl, Arnulf
Gakis, Georgios
Article History
Received: 13 February 2019
Accepted: 20 April 2019
First Online: 27 April 2019
Compliance with ethical standards
:
: G. Gakis: receipt of speaker honoraria and travel grants from IPSEN, Ettlingen, Germany. All other authors have nothing to disclose in relation with the content of the manuscript.
: The study was approved by the local ethics committee of the university of Tübingen (Approval number: 417/2010A).